| 
                 
                    Closing price on 2/7/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    71.50 | 
                 
                
                    | High | 
                    81.00 | 
                 
                
                    | Low | 
                    71.50 | 
                     
                
                    | Volume | 
                    23,510 | 
                                 
                
                    | Split-adjusted Price | 
                    21.47 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
L14 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/7/2018
             | 
            
                +2.50 / +3.33%
             |             
            
                71.50
             |           
            
                81.00
             |               
            
                71.50
             |                           
            
                77.50
             | 
            
                76.83
             |                     
            
                21.47
             |                                 
            
                23,510
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2018
             | 
            
                -3.20 / -4.09%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                71.00
             |                           
            
                75.00
             | 
            
                72.94
             |                     
            
                20.77
             |                                 
            
                32,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2018
             | 
            
                -4.80 / -5.78%
             |             
            
                82.00
             |           
            
                83.00
             |               
            
                78.20
             |                           
            
                78.20
             | 
            
                81.12
             |                     
            
                21.66
             |                                 
            
                23,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2018
             | 
            
                -0.60 / -0.72%
             |             
            
                83.60
             |           
            
                83.80
             |               
            
                82.50
             |                           
            
                83.00
             | 
            
                82.99
             |                     
            
                22.99
             |                                 
            
                25,764
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2018
             | 
            
                -0.20 / -0.24%
             |             
            
                85.00
             |           
            
                85.00
             |               
            
                81.60
             |                           
            
                83.60
             | 
            
                82.73
             |                     
            
                23.16
             |                                 
            
                35,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2018
             | 
            
                -0.20 / -0.24%
             |             
            
                84.00
             |           
            
                84.50
             |               
            
                82.50
             |                           
            
                83.80
             | 
            
                83.22
             |                     
            
                23.21
             |                                 
            
                39,233
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2018
             | 
            
                -1.00 / -1.18%
             |             
            
                83.00
             |           
            
                85.00
             |               
            
                82.20
             |                           
            
                84.00
             | 
            
                83.22
             |                     
            
                23.27
             |                                 
            
                31,880
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2018
             | 
            
                -2.00 / -2.30%
             |             
            
                87.00
             |           
            
                89.90
             |               
            
                84.00
             |                           
            
                85.00
             | 
            
                86.51
             |                     
            
                23.54
             |                                 
            
                15,111
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2018
             | 
            
                +1.00 / +1.16%
             |             
            
                86.00
             |           
            
                87.00
             |               
            
                84.00
             |                           
            
                87.00
             | 
            
                84.96
             |                     
            
                24.10
             |                                 
            
                24,450
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2018
             | 
            
                -3.60 / -4.02%
             |             
            
                89.90
             |           
            
                89.90
             |               
            
                86.00
             |                           
            
                86.00
             | 
            
                86.64
             |                     
            
                23.82
             |                                 
            
                21,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2018
             | 
            
                -0.30 / -0.33%
             |             
            
                89.90
             |           
            
                89.90
             |               
            
                84.00
             |                           
            
                89.60
             | 
            
                86.44
             |                     
            
                24.82
             |                                 
            
                84,265
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2018
             | 
            
                -2.00 / -2.18%
             |             
            
                91.90
             |           
            
                93.00
             |               
            
                89.90
             |                           
            
                89.90
             | 
            
                90.91
             |                     
            
                24.90
             |                                 
            
                35,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2018
             | 
            
                +1.50 / +1.66%
             |             
            
                93.00
             |           
            
                95.00
             |               
            
                90.60
             |                           
            
                91.90
             | 
            
                92.86
             |                     
            
                25.46
             |                                 
            
                40,125
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                +1.00 / +1.12%
             |             
            
                89.40
             |           
            
                90.50
             |               
            
                89.00
             |                           
            
                90.40
             | 
            
                89.83
             |                     
            
                25.04
             |                                 
            
                26,199
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                -0.20 / -0.22%
             |             
            
                89.20
             |           
            
                91.00
             |               
            
                86.60
             |                           
            
                89.40
             | 
            
                89.62
             |                     
            
                24.76
             |                                 
            
                25,750
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                +3.10 / +3.58%
             |             
            
                85.00
             |           
            
                92.50
             |               
            
                85.00
             |                           
            
                89.60
             | 
            
                90.10
             |                     
            
                24.82
             |                                 
            
                106,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2018
             | 
            
                +2.10 / +2.49%
             |             
            
                84.40
             |           
            
                87.00
             |               
            
                84.40
             |                           
            
                86.50
             | 
            
                85.52
             |                     
            
                23.96
             |                                 
            
                31,032
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2018
             | 
            
                +3.00 / +3.69%
             |             
            
                82.00
             |           
            
                84.50
             |               
            
                82.00
             |                           
            
                84.40
             | 
            
                83.82
             |                     
            
                23.38
             |                                 
            
                46,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2018
             | 
            
                +1.00 / +1.24%
             |             
            
                80.50
             |           
            
                82.00
             |               
            
                79.80
             |                           
            
                81.40
             | 
            
                80.60
             |                     
            
                22.55
             |                                 
            
                35,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2018
             | 
            
                +0.50 / +0.63%
             |             
            
                82.00
             |           
            
                82.00
             |               
            
                72.00
             |                           
            
                80.40
             | 
            
                80.10
             |                     
            
                22.27
             |                                 
            
                20,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2018
             | 
            
                -0.60 / -0.75%
             |             
            
                81.50
             |           
            
                81.50
             |               
            
                78.00
             |                           
            
                79.90
             | 
            
                79.42
             |                     
            
                22.13
             |                                 
            
                14,690
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2018
             | 
            
                +2.50 / +3.21%
             |             
            
                79.00
             |           
            
                81.90
             |               
            
                77.00
             |                           
            
                80.50
             | 
            
                78.97
             |                     
            
                22.30
             |                                 
            
                30,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                79.40
             |           
            
                79.40
             |               
            
                77.00
             |                           
            
                78.00
             | 
            
                77.84
             |                     
            
                21.61
             |                                 
            
                10,140
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2018
             | 
            
                +0.80 / +1.04%
             |             
            
                77.50
             |           
            
                79.00
             |               
            
                76.10
             |                           
            
                78.00
             | 
            
                77.20
             |                     
            
                21.61
             |                                 
            
                5,112
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2018
             | 
            
                -2.60 / -3.26%
             |             
            
                78.50
             |           
            
                79.50
             |               
            
                77.20
             |                           
            
                77.20
             | 
            
                78.01
             |                     
            
                21.38
             |                                 
            
                28,830
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2018
             | 
            
                -0.20 / -0.25%
             |             
            
                79.80
             |           
            
                79.90
             |               
            
                78.00
             |                           
            
                79.80
             | 
            
                78.61
             |                     
            
                22.10
             |                                 
            
                9,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/2/2018
             | 
            
                +1.80 / +2.30%
             |             
            
                79.00
             |           
            
                81.80
             |               
            
                79.00
             |                           
            
                80.00
             | 
            
                79.79
             |                     
            
                22.16
             |                                 
            
                2,030
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2017
             | 
            
                -1.80 / -2.25%
             |             
            
                78.70
             |           
            
                79.80
             |               
            
                78.20
             |                           
            
                78.20
             | 
            
                78.77
             |                     
            
                21.66
             |                                 
            
                6,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2017
             | 
            
                -1.00 / -1.23%
             |             
            
                78.50
             |           
            
                81.30
             |               
            
                78.00
             |                           
            
                80.00
             | 
            
                79.13
             |                     
            
                22.16
             |                                 
            
                24,920
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2017
             | 
            
                -0.20 / -0.25%
             |             
            
                80.90
             |           
            
                81.50
             |               
            
                78.00
             |                           
            
                81.00
             | 
            
                79.34
             |                     
            
                22.44
             |                                 
            
                27,905
             |  
            
                 
             |                                                              
             
    
         
    
    
 |