| 
                 
                    Closing price on 10/6/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    39.00 | 
                 
                
                    | High | 
                    39.50 | 
                 
                
                    | Low | 
                    37.60 | 
                     
                
                    | Volume | 
                    110,640 | 
                                 
                
                    | Split-adjusted Price | 
                    37.19 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SCD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/6/2017
             | 
            
                -1.00 / -2.53%
             |             
            
                39.00
             |           
            
                39.50
             |               
            
                37.60
             |                           
            
                38.50
             | 
            
                38.06
             |                     
            
                37.19
             |                                 
            
                110,640
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2017
             | 
            
                -0.80 / -1.99%
             |             
            
                39.50
             |           
            
                42.00
             |               
            
                38.70
             |                           
            
                39.50
             | 
            
                39.29
             |                     
            
                38.16
             |                                 
            
                106,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2017
             | 
            
                -3.00 / -6.93%
             |             
            
                40.30
             |           
            
                42.00
             |               
            
                40.30
             |                           
            
                40.30
             | 
            
                40.57
             |                     
            
                38.93
             |                                 
            
                125,810
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2017
             | 
            
                +2.15 / +5.22%
             |             
            
                43.70
             |           
            
                44.00
             |               
            
                41.25
             |                           
            
                43.30
             | 
            
                43.14
             |                     
            
                41.83
             |                                 
            
                151,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2017
             | 
            
                +2.65 / +6.88%
             |             
            
                41.15
             |           
            
                41.15
             |               
            
                39.00
             |                           
            
                41.15
             | 
            
                40.87
             |                     
            
                39.75
             |                                 
            
                130,560
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2017
             | 
            
                +2.50 / +6.94%
             |             
            
                38.50
             |           
            
                38.50
             |               
            
                38.50
             |                           
            
                38.50
             | 
            
                38.50
             |                     
            
                37.19
             |                                 
            
                105,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2017
             | 
            
                +2.35 / +6.98%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                36.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                34.77
             |                                 
            
                122,280
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2017
             | 
            
                +2.20 / +7.00%
             |             
            
                32.90
             |           
            
                33.65
             |               
            
                32.00
             |                           
            
                33.65
             | 
            
                33.46
             |                     
            
                32.50
             |                                 
            
                113,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2017
             | 
            
                +2.05 / +6.97%
             |             
            
                29.50
             |           
            
                31.45
             |               
            
                29.40
             |                           
            
                31.45
             | 
            
                31.26
             |                     
            
                30.38
             |                                 
            
                105,310
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2017
             | 
            
                +1.90 / +6.91%
             |             
            
                27.50
             |           
            
                29.40
             |               
            
                27.50
             |                           
            
                29.40
             | 
            
                29.22
             |                     
            
                28.40
             |                                 
            
                149,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2017
             | 
            
                -0.75 / -2.65%
             |             
            
                27.50
             |           
            
                28.40
             |               
            
                27.50
             |                           
            
                27.50
             | 
            
                27.74
             |                     
            
                26.56
             |                                 
            
                124,620
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2017
             | 
            
                -2.10 / -6.92%
             |             
            
                31.95
             |           
            
                31.95
             |               
            
                28.25
             |                           
            
                28.25
             | 
            
                28.35
             |                     
            
                27.29
             |                                 
            
                119,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2017
             | 
            
                -2.25 / -6.90%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                30.35
             |                           
            
                30.35
             | 
            
                30.76
             |                     
            
                29.32
             |                                 
            
                126,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2017
             | 
            
                -2.30 / -6.59%
             |             
            
                32.60
             |           
            
                34.00
             |               
            
                32.50
             |                           
            
                32.60
             | 
            
                32.69
             |                     
            
                31.49
             |                                 
            
                147,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2017
             | 
            
                -2.60 / -6.93%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                34.90
             |                           
            
                34.90
             | 
            
                35.43
             |                     
            
                33.71
             |                                 
            
                109,850
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2017
             | 
            
                -0.50 / -1.32%
             |             
            
                36.70
             |           
            
                38.00
             |               
            
                36.60
             |                           
            
                37.50
             | 
            
                36.70
             |                     
            
                36.22
             |                                 
            
                101,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2017
             | 
            
                +0.80 / +2.15%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.00
             |                     
            
                36.71
             |                                 
            
                100,080
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2017
             | 
            
                -0.40 / -1.06%
             |             
            
                37.60
             |           
            
                37.60
             |               
            
                36.50
             |                           
            
                37.20
             | 
            
                37.09
             |                     
            
                35.93
             |                                 
            
                102,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2017
             | 
            
                -1.00 / -2.59%
             |             
            
                38.60
             |           
            
                38.60
             |               
            
                37.50
             |                           
            
                37.60
             | 
            
                38.16
             |                     
            
                36.32
             |                                 
            
                104,770
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                38.60
             |           
            
                38.60
             |               
            
                38.60
             |                           
            
                38.60
             | 
            
                38.60
             |                     
            
                37.29
             |                                 
            
                101,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2017
             | 
            
                -1.40 / -3.50%
             |             
            
                39.95
             |           
            
                40.00
             |               
            
                38.35
             |                           
            
                38.60
             | 
            
                38.64
             |                     
            
                37.29
             |                                 
            
                101,760
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                40.00
             |           
            
                40.30
             |               
            
                38.60
             |                           
            
                40.00
             | 
            
                39.25
             |                     
            
                38.64
             |                                 
            
                104,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2017
             | 
            
                +0.20 / +0.50%
             |             
            
                40.00
             |           
            
                40.00
             |               
            
                40.00
             |                           
            
                40.00
             | 
            
                40.00
             |                     
            
                38.64
             |                                 
            
                100,040
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2017
             | 
            
                +1.20 / +3.11%
             |             
            
                39.80
             |           
            
                39.80
             |               
            
                39.80
             |                           
            
                39.80
             | 
            
                39.80
             |                     
            
                38.45
             |                                 
            
                100,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2017
             | 
            
                -2.20 / -5.39%
             |             
            
                39.50
             |           
            
                40.50
             |               
            
                38.60
             |                           
            
                38.60
             | 
            
                38.85
             |                     
            
                37.29
             |                                 
            
                106,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2017
             | 
            
                +0.60 / +1.49%
             |             
            
                40.80
             |           
            
                40.80
             |               
            
                40.80
             |                           
            
                40.80
             | 
            
                40.80
             |                     
            
                39.41
             |                                 
            
                100,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2017
             | 
            
                0.00 / 0.00%
             |             
            
                40.30
             |           
            
                40.30
             |               
            
                40.00
             |                           
            
                40.20
             | 
            
                40.20
             |                     
            
                38.83
             |                                 
            
                100,780
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2017
             | 
            
                -1.00 / -2.43%
             |             
            
                41.30
             |           
            
                41.30
             |               
            
                40.20
             |                           
            
                40.20
             | 
            
                41.21
             |                     
            
                38.83
             |                                 
            
                108,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2017
             | 
            
                -0.80 / -1.90%
             |             
            
                41.20
             |           
            
                41.20
             |               
            
                40.10
             |                           
            
                41.20
             | 
            
                40.78
             |                     
            
                39.80
             |                                 
            
                105,910
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2017
             | 
            
                -0.30 / -0.71%
             |             
            
                41.40
             |           
            
                42.00
             |               
            
                40.60
             |                           
            
                42.00
             | 
            
                41.22
             |                     
            
                40.57
             |                                 
            
                108,710
             |  
            
                 
             |                                                              
             
    
         
    
    
 |