| 
                 
                    Closing price on 5/31/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    206.00 | 
                 
                
                    | High | 
                    214.50 | 
                 
                
                    | Low | 
                    206.00 | 
                     
                
                    | Volume | 
                    248,720 | 
                                 
                
                    | Split-adjusted Price | 
                    137.43 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CTD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/31/2017
             | 
            
                +6.00 / +2.88%
             |             
            
                206.00
             |           
            
                214.50
             |               
            
                206.00
             |                           
            
                214.00
             | 
            
                211.57
             |                     
            
                137.43
             |                                 
            
                248,720
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2017
             | 
            
                -5.00 / -2.35%
             |             
            
                214.00
             |           
            
                215.40
             |               
            
                208.00
             |                           
            
                208.00
             | 
            
                212.45
             |                     
            
                133.58
             |                                 
            
                211,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2017
             | 
            
                0.00 / 0.00%
             |             
            
                213.50
             |           
            
                214.60
             |               
            
                211.60
             |                           
            
                213.00
             | 
            
                213.07
             |                     
            
                136.79
             |                                 
            
                213,210
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2017
             | 
            
                +3.00 / +1.43%
             |             
            
                210.90
             |           
            
                215.00
             |               
            
                210.00
             |                           
            
                213.00
             | 
            
                212.52
             |                     
            
                136.79
             |                                 
            
                323,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2017
             | 
            
                +9.00 / +4.48%
             |             
            
                202.00
             |           
            
                210.00
             |               
            
                200.80
             |                           
            
                210.00
             | 
            
                205.20
             |                     
            
                134.86
             |                                 
            
                273,420
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2017
             | 
            
                +1.00 / +0.50%
             |             
            
                200.70
             |           
            
                202.00
             |               
            
                200.00
             |                           
            
                201.00
             | 
            
                200.95
             |                     
            
                129.08
             |                                 
            
                156,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2017
             | 
            
                -0.70 / -0.35%
             |             
            
                200.70
             |           
            
                200.80
             |               
            
                199.10
             |                           
            
                200.00
             | 
            
                200.03
             |                     
            
                128.44
             |                                 
            
                121,650
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2017
             | 
            
                -1.30 / -0.64%
             |             
            
                202.00
             |           
            
                202.10
             |               
            
                200.00
             |                           
            
                200.70
             | 
            
                200.75
             |                     
            
                128.89
             |                                 
            
                173,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2017
             | 
            
                -0.50 / -0.25%
             |             
            
                203.00
             |           
            
                203.00
             |               
            
                201.00
             |                           
            
                202.00
             | 
            
                202.16
             |                     
            
                129.73
             |                                 
            
                100,370
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2017
             | 
            
                -0.90 / -0.44%
             |             
            
                203.90
             |           
            
                203.90
             |               
            
                202.30
             |                           
            
                202.50
             | 
            
                203.35
             |                     
            
                130.05
             |                                 
            
                90,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2017
             | 
            
                +2.40 / +1.19%
             |             
            
                201.00
             |           
            
                203.60
             |               
            
                201.00
             |                           
            
                203.40
             | 
            
                202.82
             |                     
            
                130.63
             |                                 
            
                105,170
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2017
             | 
            
                -2.00 / -0.99%
             |             
            
                203.00
             |           
            
                203.90
             |               
            
                201.00
             |                           
            
                201.00
             | 
            
                202.91
             |                     
            
                129.08
             |                                 
            
                72,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2017
             | 
            
                +2.00 / +1.00%
             |             
            
                200.20
             |           
            
                203.90
             |               
            
                199.70
             |                           
            
                203.00
             | 
            
                201.11
             |                     
            
                130.37
             |                                 
            
                125,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2017
             | 
            
                -0.50 / -0.25%
             |             
            
                201.10
             |           
            
                202.20
             |               
            
                200.80
             |                           
            
                201.00
             | 
            
                201.14
             |                     
            
                129.08
             |                                 
            
                76,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2017
             | 
            
                -1.00 / -0.49%
             |             
            
                202.50
             |           
            
                202.50
             |               
            
                200.90
             |                           
            
                201.50
             | 
            
                201.41
             |                     
            
                129.41
             |                                 
            
                108,180
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2017
             | 
            
                -1.00 / -0.49%
             |             
            
                203.50
             |           
            
                204.40
             |               
            
                202.10
             |                           
            
                202.50
             | 
            
                203.70
             |                     
            
                130.05
             |                                 
            
                59,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2017
             | 
            
                +2.00 / +0.99%
             |             
            
                202.00
             |           
            
                203.90
             |               
            
                201.70
             |                           
            
                203.50
             | 
            
                203.01
             |                     
            
                130.69
             |                                 
            
                98,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                +1.00 / +0.50%
             |             
            
                201.10
             |           
            
                202.00
             |               
            
                199.90
             |                           
            
                201.50
             | 
            
                200.67
             |                     
            
                129.41
             |                                 
            
                184,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2017
             | 
            
                +0.70 / +0.35%
             |             
            
                199.80
             |           
            
                201.10
             |               
            
                199.60
             |                           
            
                200.50
             | 
            
                200.72
             |                     
            
                128.76
             |                                 
            
                49,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                -2.40 / -1.19%
             |             
            
                201.00
             |           
            
                201.80
             |               
            
                199.50
             |                           
            
                199.80
             | 
            
                200.42
             |                     
            
                128.31
             |                                 
            
                178,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                -1.80 / -0.88%
             |             
            
                204.00
             |           
            
                205.00
             |               
            
                202.20
             |                           
            
                202.20
             | 
            
                202.90
             |                     
            
                129.86
             |                                 
            
                49,130
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -1.00 / -0.49%
             |             
            
                205.90
             |           
            
                205.90
             |               
            
                202.80
             |                           
            
                204.00
             | 
            
                203.90
             |                     
            
                131.01
             |                                 
            
                63,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                +1.00 / +0.49%
             |             
            
                204.90
             |           
            
                206.30
             |               
            
                204.10
             |                           
            
                205.00
             | 
            
                205.61
             |                     
            
                131.65
             |                                 
            
                117,880
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                +0.30 / +0.15%
             |             
            
                204.40
             |           
            
                204.90
             |               
            
                203.70
             |                           
            
                204.00
             | 
            
                204.53
             |                     
            
                131.01
             |                                 
            
                97,960
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                +1.50 / +0.74%
             |             
            
                202.20
             |           
            
                204.50
             |               
            
                201.80
             |                           
            
                203.70
             | 
            
                203.61
             |                     
            
                130.82
             |                                 
            
                98,910
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                -2.20 / -1.08%
             |             
            
                204.50
             |           
            
                205.00
             |               
            
                201.00
             |                           
            
                202.20
             | 
            
                202.90
             |                     
            
                129.86
             |                                 
            
                118,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                +0.10 / +0.05%
             |             
            
                205.00
             |           
            
                205.00
             |               
            
                203.50
             |                           
            
                204.40
             | 
            
                204.37
             |                     
            
                131.27
             |                                 
            
                246,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                +1.80 / +0.89%
             |             
            
                203.00
             |           
            
                205.50
             |               
            
                202.00
             |                           
            
                204.30
             | 
            
                203.88
             |                     
            
                131.20
             |                                 
            
                211,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2017
             | 
            
                +1.50 / +0.75%
             |             
            
                201.00
             |           
            
                203.80
             |               
            
                200.00
             |                           
            
                202.50
             | 
            
                202.22
             |                     
            
                130.05
             |                                 
            
                196,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2017
             | 
            
                +2.00 / +1.01%
             |             
            
                199.00
             |           
            
                201.00
             |               
            
                196.50
             |                           
            
                201.00
             | 
            
                197.68
             |                     
            
                129.08
             |                                 
            
                168,770
             |  
            
                 
             |                                                              
             
    
         
    
    
 |