| 
                 
                    Closing price on 8/6/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    56.00 | 
                 
                
                    | High | 
                    57.50 | 
                 
                
                    | Low | 
                    55.50 | 
                     
                
                    | Volume | 
                    255,370 | 
                                 
                
                    | Split-adjusted Price | 
                    5.73 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/6/2014
             | 
            
                +1.00 / +1.79%
             |             
            
                56.00
             |           
            
                57.50
             |               
            
                55.50
             |                           
            
                57.00
             | 
            
                57.00
             |                     
            
                5.73
             |                                 
            
                255,370
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2014
             | 
            
                +2.00 / +3.70%
             |             
            
                53.50
             |           
            
                56.00
             |               
            
                53.50
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                5.63
             |                                 
            
                78,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2014
             | 
            
                +0.50 / +0.93%
             |             
            
                54.00
             |           
            
                54.50
             |               
            
                53.50
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                5.43
             |                                 
            
                29,120
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2014
             | 
            
                0.00 / 0.00%
             |             
            
                53.50
             |           
            
                54.00
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                5.38
             |                                 
            
                33,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2014
             | 
            
                -1.00 / -1.83%
             |             
            
                54.00
             |           
            
                54.50
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                5.38
             |                                 
            
                20,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2014
             | 
            
                +2.00 / +3.81%
             |             
            
                53.00
             |           
            
                55.00
             |               
            
                53.00
             |                           
            
                54.50
             | 
            
                54.50
             |                     
            
                5.48
             |                                 
            
                41,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2014
             | 
            
                -0.50 / -0.94%
             |             
            
                52.50
             |           
            
                53.00
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                18,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2014
             | 
            
                -2.00 / -3.64%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                52.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                5.33
             |                                 
            
                67,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2014
             | 
            
                -1.00 / -1.79%
             |             
            
                56.00
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                5.53
             |                                 
            
                46,430
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2014
             | 
            
                0.00 / 0.00%
             |             
            
                56.00
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                5.63
             |                                 
            
                31,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2014
             | 
            
                -0.50 / -0.88%
             |             
            
                56.50
             |           
            
                57.00
             |               
            
                55.50
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                5.63
             |                                 
            
                17,030
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2014
             | 
            
                0.00 / 0.00%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                5.68
             |                                 
            
                22,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2014
             | 
            
                +1.50 / +2.73%
             |             
            
                55.00
             |           
            
                57.50
             |               
            
                55.00
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                5.68
             |                                 
            
                80,390
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2014
             | 
            
                -0.50 / -0.90%
             |             
            
                55.00
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                5.53
             |                                 
            
                23,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2014
             | 
            
                -0.50 / -0.89%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                55.50
             | 
            
                55.50
             |                     
            
                5.58
             |                                 
            
                16,620
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2014
             | 
            
                +3.50 / +6.67%
             |             
            
                53.00
             |           
            
                56.00
             |               
            
                53.00
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                5.63
             |                                 
            
                152,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2014
             | 
            
                0.00 / 0.00%
             |             
            
                52.50
             |           
            
                53.50
             |               
            
                52.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                19,750
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2014
             | 
            
                +0.50 / +0.96%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                22,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2014
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                5.23
             |                                 
            
                5,360
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2014
             | 
            
                -0.50 / -0.95%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                5.23
             |                                 
            
                54,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2014
             | 
            
                +0.50 / +0.96%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                197,050
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2014
             | 
            
                -1.00 / -1.89%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                52.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                5.23
             |                                 
            
                10,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2014
             | 
            
                +0.50 / +0.95%
             |             
            
                52.50
             |           
            
                53.00
             |               
            
                52.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                5.33
             |                                 
            
                28,280
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2014
             | 
            
                +0.50 / +0.96%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                29,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2014
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                5.23
             |                                 
            
                16,230
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2014
             | 
            
                +0.50 / +0.97%
             |             
            
                51.50
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                5.23
             |                                 
            
                59,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2014
             | 
            
                +0.50 / +0.98%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                51.00
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                5.18
             |                                 
            
                27,260
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2014
             | 
            
                -0.50 / -0.97%
             |             
            
                51.00
             |           
            
                52.00
             |               
            
                51.00
             |                           
            
                51.00
             | 
            
                51.00
             |                     
            
                5.13
             |                                 
            
                33,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2014
             | 
            
                -1.00 / -1.90%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                5.18
             |                                 
            
                22,190
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2014
             | 
            
                0.00 / 0.00%
             |             
            
                52.50
             |           
            
                52.50
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                5.28
             |                                 
            
                44,490
             |  
            
                 
             |                                                              
             
    
         
    
    
 |