| 
                 
                    Closing price on 6/9/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    60.00 | 
                 
                
                    | High | 
                    60.10 | 
                 
                
                    | Low | 
                    59.50 | 
                     
                
                    | Volume | 
                    168,195 | 
                                 
                
                    | Split-adjusted Price | 
                    8.56 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/9/2017
             | 
            
                -0.40 / -0.67%
             |             
            
                60.00
             |           
            
                60.10
             |               
            
                59.50
             |                           
            
                59.60
             | 
            
                59.82
             |                     
            
                8.56
             |                                 
            
                168,195
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2017
             | 
            
                +2.50 / +4.35%
             |             
            
                57.50
             |           
            
                60.50
             |               
            
                57.50
             |                           
            
                60.00
             | 
            
                59.37
             |                     
            
                8.62
             |                                 
            
                344,085
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2017
             | 
            
                +0.80 / +1.41%
             |             
            
                57.00
             |           
            
                57.90
             |               
            
                56.70
             |                           
            
                57.50
             | 
            
                57.36
             |                     
            
                8.26
             |                                 
            
                208,135
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2017
             | 
            
                -0.20 / -0.35%
             |             
            
                56.90
             |           
            
                56.90
             |               
            
                56.70
             |                           
            
                56.70
             | 
            
                56.75
             |                     
            
                8.15
             |                                 
            
                71,395
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2017
             | 
            
                +0.10 / +0.18%
             |             
            
                56.80
             |           
            
                56.90
             |               
            
                56.80
             |                           
            
                56.90
             | 
            
                56.83
             |                     
            
                8.17
             |                                 
            
                93,355
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.40
             |           
            
                57.40
             |               
            
                56.70
             |                           
            
                56.80
             | 
            
                56.80
             |                     
            
                8.16
             |                                 
            
                71,365
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2017
             | 
            
                0.00 / 0.00%
             |             
            
                56.70
             |           
            
                57.10
             |               
            
                56.70
             |                           
            
                56.80
             | 
            
                56.84
             |                     
            
                8.16
             |                                 
            
                68,945
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2017
             | 
            
                -0.50 / -0.87%
             |             
            
                57.60
             |           
            
                57.60
             |               
            
                56.80
             |                           
            
                56.80
             | 
            
                57.07
             |                     
            
                8.16
             |                                 
            
                75,905
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2017
             | 
            
                +0.50 / +0.88%
             |             
            
                56.90
             |           
            
                57.90
             |               
            
                56.60
             |                           
            
                57.30
             | 
            
                57.17
             |                     
            
                8.23
             |                                 
            
                139,015
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.10
             |           
            
                57.10
             |               
            
                56.60
             |                           
            
                56.80
             | 
            
                56.72
             |                     
            
                8.16
             |                                 
            
                149,035
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.40
             |           
            
                57.40
             |               
            
                56.60
             |                           
            
                56.80
             | 
            
                56.85
             |                     
            
                8.16
             |                                 
            
                89,605
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2017
             | 
            
                -0.20 / -0.35%
             |             
            
                57.20
             |           
            
                57.40
             |               
            
                56.80
             |                           
            
                56.80
             | 
            
                56.99
             |                     
            
                8.16
             |                                 
            
                60,415
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2017
             | 
            
                +0.40 / +0.71%
             |             
            
                56.50
             |           
            
                57.40
             |               
            
                56.50
             |                           
            
                57.00
             | 
            
                56.97
             |                     
            
                8.19
             |                                 
            
                96,425
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2017
             | 
            
                +0.10 / +0.18%
             |             
            
                56.70
             |           
            
                56.70
             |               
            
                56.30
             |                           
            
                56.60
             | 
            
                56.51
             |                     
            
                8.13
             |                                 
            
                112,805
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.10
             |           
            
                57.10
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.74
             |                     
            
                8.12
             |                                 
            
                140,475
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2017
             | 
            
                -0.40 / -0.70%
             |             
            
                56.90
             |           
            
                56.90
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.74
             |                     
            
                8.12
             |                                 
            
                135,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/18/2017
             | 
            
                -0.40 / -0.70%
             |             
            
                57.10
             |           
            
                57.10
             |               
            
                56.80
             |                           
            
                56.90
             | 
            
                56.96
             |                     
            
                8.17
             |                                 
            
                276,520
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2017
             | 
            
                -0.10 / -0.17%
             |             
            
                57.40
             |           
            
                57.40
             |               
            
                57.10
             |                           
            
                57.30
             | 
            
                57.24
             |                     
            
                8.23
             |                                 
            
                28,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2017
             | 
            
                -0.10 / -0.17%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                57.40
             |                           
            
                57.40
             | 
            
                57.45
             |                     
            
                8.25
             |                                 
            
                40,780
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2017
             | 
            
                +0.10 / +0.17%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                57.20
             |                           
            
                57.50
             | 
            
                57.32
             |                     
            
                8.26
             |                                 
            
                92,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.80
             |           
            
                57.80
             |               
            
                57.20
             |                           
            
                57.40
             | 
            
                57.39
             |                     
            
                8.25
             |                                 
            
                125,230
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2017
             | 
            
                -0.10 / -0.17%
             |             
            
                57.80
             |           
            
                57.90
             |               
            
                57.10
             |                           
            
                57.40
             | 
            
                57.52
             |                     
            
                8.25
             |                                 
            
                129,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2017
             | 
            
                +0.50 / +0.88%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                56.90
             |                           
            
                57.50
             | 
            
                57.15
             |                     
            
                8.26
             |                                 
            
                290,640
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                56.80
             |                           
            
                57.00
             | 
            
                56.89
             |                     
            
                8.19
             |                                 
            
                53,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2017
             | 
            
                +0.50 / +0.88%
             |             
            
                56.50
             |           
            
                57.40
             |               
            
                56.50
             |                           
            
                57.00
             | 
            
                56.90
             |                     
            
                8.19
             |                                 
            
                38,910
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2017
             | 
            
                +0.10 / +0.18%
             |             
            
                56.80
             |           
            
                57.00
             |               
            
                56.30
             |                           
            
                56.50
             | 
            
                56.55
             |                     
            
                8.12
             |                                 
            
                67,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2017
             | 
            
                -0.60 / -1.05%
             |             
            
                56.80
             |           
            
                56.90
             |               
            
                56.20
             |                           
            
                56.40
             | 
            
                56.54
             |                     
            
                8.10
             |                                 
            
                125,050
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2017
             | 
            
                -0.60 / -1.04%
             |             
            
                57.60
             |           
            
                57.60
             |               
            
                56.80
             |                           
            
                57.00
             | 
            
                57.05
             |                     
            
                8.19
             |                                 
            
                355,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.50
             |           
            
                57.80
             |               
            
                57.00
             |                           
            
                57.60
             | 
            
                57.30
             |                     
            
                8.27
             |                                 
            
                99,340
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2017
             | 
            
                -0.40 / -0.69%
             |             
            
                57.80
             |           
            
                58.00
             |               
            
                57.60
             |                           
            
                57.60
             | 
            
                57.76
             |                     
            
                8.27
             |                                 
            
                101,680
             |  
            
                 
             |                                                              
             
    
         
    
    
 |