| 
                 
                    Closing price on 12/29/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    38.80 | 
                 
                
                    | High | 
                    40.45 | 
                 
                
                    | Low | 
                    38.80 | 
                     
                
                    | Volume | 
                    5,650 | 
                                 
                
                    | Split-adjusted Price | 
                    38.49 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SCD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/29/2017
             | 
            
                +0.45 / +1.14%
             |             
            
                38.80
             |           
            
                40.45
             |               
            
                38.80
             |                           
            
                39.85
             | 
            
                39.47
             |                     
            
                38.49
             |                                 
            
                5,650
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2017
             | 
            
                -0.30 / -0.76%
             |             
            
                38.00
             |           
            
                39.50
             |               
            
                38.00
             |                           
            
                39.40
             | 
            
                38.11
             |                     
            
                38.06
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2017
             | 
            
                -0.20 / -0.50%
             |             
            
                39.70
             |           
            
                39.70
             |               
            
                39.70
             |                           
            
                39.70
             | 
            
                39.70
             |                     
            
                38.35
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2017
             | 
            
                -0.10 / -0.25%
             |             
            
                39.50
             |           
            
                40.00
             |               
            
                39.00
             |                           
            
                39.90
             | 
            
                39.76
             |                     
            
                38.54
             |                                 
            
                2,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/25/2017
             | 
            
                -0.90 / -2.20%
             |             
            
                40.00
             |           
            
                40.00
             |               
            
                39.00
             |                           
            
                40.00
             | 
            
                39.53
             |                     
            
                38.64
             |                                 
            
                430
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2017
             | 
            
                +0.10 / +0.25%
             |             
            
                40.95
             |           
            
                40.95
             |               
            
                39.50
             |                           
            
                40.90
             | 
            
                40.58
             |                     
            
                39.51
             |                                 
            
                190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2017
             | 
            
                -1.00 / -2.39%
             |             
            
                39.00
             |           
            
                41.00
             |               
            
                39.00
             |                           
            
                40.80
             | 
            
                40.07
             |                     
            
                39.41
             |                                 
            
                5,490
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2017
             | 
            
                +0.20 / +0.48%
             |             
            
                40.00
             |           
            
                41.80
             |               
            
                38.90
             |                           
            
                41.80
             | 
            
                39.22
             |                     
            
                40.38
             |                                 
            
                510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2017
             | 
            
                -0.40 / -0.95%
             |             
            
                41.00
             |           
            
                41.75
             |               
            
                40.20
             |                           
            
                41.60
             | 
            
                40.54
             |                     
            
                40.18
             |                                 
            
                1,110
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2017
             | 
            
                0.00 / 0.00%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                40.57
             |                                 
            
                460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                40.57
             |                                 
            
                210
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2017
             | 
            
                -0.45 / -1.06%
             |             
            
                42.45
             |           
            
                42.45
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.23
             |                     
            
                40.57
             |                                 
            
                160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2017
             | 
            
                +0.15 / +0.35%
             |             
            
                42.45
             |           
            
                42.45
             |               
            
                42.45
             |                           
            
                42.45
             | 
            
                42.45
             |                     
            
                41.00
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                12/12/2017
             | 
            
                +1.30 / +3.17%
             |             
            
                42.40
             |           
            
                42.40
             |               
            
                41.00
             |                           
            
                42.30
             | 
            
                42.03
             |                     
            
                40.86
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/11/2017
             | 
            
                -1.30 / -3.07%
             |             
            
                42.25
             |           
            
                42.25
             |               
            
                40.00
             |                           
            
                41.00
             | 
            
                40.68
             |                     
            
                39.60
             |                                 
            
                1,180
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2017
             | 
            
                -0.30 / -0.70%
             |             
            
                42.20
             |           
            
                42.30
             |               
            
                42.20
             |                           
            
                42.30
             | 
            
                42.25
             |                     
            
                40.86
             |                                 
            
                60
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2017
             | 
            
                +1.40 / +3.40%
             |             
            
                42.60
             |           
            
                42.60
             |               
            
                42.60
             |                           
            
                42.60
             | 
            
                42.60
             |                     
            
                41.15
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2017
             | 
            
                -1.30 / -3.06%
             |             
            
                42.40
             |           
            
                42.40
             |               
            
                40.00
             |                           
            
                41.20
             | 
            
                41.44
             |                     
            
                39.80
             |                                 
            
                1,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                41.60
             |           
            
                42.50
             |               
            
                41.60
             |                           
            
                42.50
             | 
            
                42.05
             |                     
            
                41.05
             |                                 
            
                510
             |            
            
                 
             |                                       
         
    
        
            | 
                12/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                42.90
             |           
            
                42.90
             |               
            
                42.50
             |                           
            
                42.50
             | 
            
                42.51
             |                     
            
                41.05
             |                                 
            
                8,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2017
             | 
            
                -0.50 / -1.16%
             |             
            
                42.00
             |           
            
                43.40
             |               
            
                41.65
             |                           
            
                42.50
             | 
            
                42.01
             |                     
            
                41.05
             |                                 
            
                3,690
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2017
             | 
            
                0.00 / 0.00%
             |             
            
                43.90
             |           
            
                43.90
             |               
            
                41.30
             |                           
            
                43.00
             | 
            
                41.88
             |                     
            
                41.54
             |                                 
            
                4,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2017
             | 
            
                +1.00 / +2.38%
             |             
            
                42.00
             |           
            
                43.00
             |               
            
                42.00
             |                           
            
                43.00
             | 
            
                42.61
             |                     
            
                41.54
             |                                 
            
                3,980
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2017
             | 
            
                0.00 / 0.00%
             |             
            
                41.90
             |           
            
                42.00
             |               
            
                41.90
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                40.57
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2017
             | 
            
                -0.80 / -1.87%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                40.00
             |                           
            
                42.00
             | 
            
                41.14
             |                     
            
                40.57
             |                                 
            
                3,480
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2017
             | 
            
                -0.20 / -0.47%
             |             
            
                42.80
             |           
            
                43.00
             |               
            
                42.50
             |                           
            
                42.80
             | 
            
                42.86
             |                     
            
                41.34
             |                                 
            
                21,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2017
             | 
            
                0.00 / 0.00%
             |             
            
                42.20
             |           
            
                45.00
             |               
            
                42.00
             |                           
            
                43.00
             | 
            
                42.92
             |                     
            
                41.54
             |                                 
            
                9,540
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2017
             | 
            
                -1.70 / -3.80%
             |             
            
                42.20
             |           
            
                44.70
             |               
            
                42.00
             |                           
            
                43.00
             | 
            
                42.98
             |                     
            
                41.54
             |                                 
            
                15,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/21/2017
             | 
            
                +0.30 / +0.68%
             |             
            
                44.30
             |           
            
                44.70
             |               
            
                42.50
             |                           
            
                44.70
             | 
            
                42.86
             |                     
            
                43.18
             |                                 
            
                4,340
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2017
             | 
            
                -0.10 / -0.22%
             |             
            
                44.50
             |           
            
                44.50
             |               
            
                42.50
             |                           
            
                44.40
             | 
            
                43.79
             |                     
            
                42.89
             |                                 
            
                3,380
             |  
            
                 
             |                                                              
             
    
         
    
    
 |