| 
                 
                    Closing price on 8/7/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    62.00 | 
                 
                
                    | High | 
                    62.00 | 
                 
                
                    | Low | 
                    61.50 | 
                     
                
                    | Volume | 
                    57,390 | 
                                 
                
                    | Split-adjusted Price | 
                    1.09 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VSC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/7/2008
             | 
            
                +1.00 / +1.65%
             |             
            
                62.00
             |           
            
                62.00
             |               
            
                61.50
             |                           
            
                61.50
             | 
            
                61.50
             |                     
            
                1.09
             |                                 
            
                57,390
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2008
             | 
            
                -0.50 / -0.82%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                60.50
             |                           
            
                60.50
             | 
            
                60.50
             |                     
            
                1.08
             |                                 
            
                49,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2008
             | 
            
                -1.50 / -2.40%
             |             
            
                61.00
             |           
            
                61.50
             |               
            
                61.00
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                1.05
             |                                 
            
                142,880
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2008
             | 
            
                0.00 / 0.00%
             |             
            
                64.00
             |           
            
                64.00
             |               
            
                61.00
             |                           
            
                62.50
             | 
            
                62.50
             |                     
            
                1.08
             |                                 
            
                147,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2008
             | 
            
                +1.50 / +2.46%
             |             
            
                62.50
             |           
            
                62.50
             |               
            
                62.50
             |                           
            
                62.50
             | 
            
                62.50
             |                     
            
                1.08
             |                                 
            
                35,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2008
             | 
            
                +1.50 / +2.52%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                1.05
             |                                 
            
                118,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2008
             | 
            
                +1.50 / +2.59%
             |             
            
                59.50
             |           
            
                59.50
             |               
            
                58.00
             |                           
            
                59.50
             | 
            
                59.50
             |                     
            
                1.02
             |                                 
            
                118,720
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2008
             | 
            
                +1.50 / +2.65%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                1.00
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2008
             | 
            
                +1.50 / +2.73%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                0.97
             |                                 
            
                8,310
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2008
             | 
            
                +1.50 / +2.80%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                53.50
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                0.95
             |                                 
            
                131,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2008
             | 
            
                -1.50 / -2.73%
             |             
            
                54.00
             |           
            
                56.50
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                0.92
             |                                 
            
                215,060
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2008
             | 
            
                -1.50 / -2.65%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                0.95
             |                                 
            
                7,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2008
             | 
            
                -1.50 / -2.59%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                0.97
             |                                 
            
                22,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2008
             | 
            
                -1.50 / -2.52%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                1.00
             |                                 
            
                35,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/18/2008
             | 
            
                +1.50 / +2.59%
             |             
            
                56.50
             |           
            
                59.50
             |               
            
                56.50
             |                           
            
                59.50
             | 
            
                59.50
             |                     
            
                1.02
             |                                 
            
                127,430
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2008
             | 
            
                +1.50 / +2.65%
             |             
            
                58.00
             |           
            
                58.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                1.00
             |                                 
            
                8,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2008
             | 
            
                +1.50 / +2.73%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                0.97
             |                                 
            
                50,970
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2008
             | 
            
                +1.50 / +2.80%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                0.95
             |                                 
            
                12,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2008
             | 
            
                +1.50 / +2.88%
             |             
            
                53.50
             |           
            
                53.50
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                0.92
             |                                 
            
                24,450
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2008
             | 
            
                +1.50 / +2.97%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                52.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                0.89
             |                                 
            
                750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2008
             | 
            
                +1.20 / +2.43%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                50.50
             |                           
            
                50.50
             | 
            
                50.50
             |                     
            
                0.87
             |                                 
            
                3,250
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2008
             | 
            
                +1.40 / +2.92%
             |             
            
                49.30
             |           
            
                49.30
             |               
            
                49.30
             |                           
            
                49.30
             | 
            
                49.30
             |                     
            
                0.85
             |                                 
            
                20
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2008
             | 
            
                +1.30 / +2.79%
             |             
            
                46.60
             |           
            
                47.90
             |               
            
                45.50
             |                           
            
                47.90
             | 
            
                47.90
             |                     
            
                0.82
             |                                 
            
                100,440
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2008
             | 
            
                -0.40 / -0.85%
             |             
            
                48.40
             |           
            
                48.40
             |               
            
                46.20
             |                           
            
                46.60
             | 
            
                46.60
             |                     
            
                0.80
             |                                 
            
                98,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2008
             | 
            
                +1.30 / +2.84%
             |             
            
                47.00
             |           
            
                47.00
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                0.81
             |                                 
            
                9,420
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2008
             | 
            
                +1.30 / +2.93%
             |             
            
                45.70
             |           
            
                45.70
             |               
            
                45.70
             |                           
            
                45.70
             | 
            
                45.70
             |                     
            
                0.79
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2008
             | 
            
                +1.20 / +2.78%
             |             
            
                44.40
             |           
            
                44.40
             |               
            
                43.70
             |                           
            
                44.40
             | 
            
                44.40
             |                     
            
                0.76
             |                                 
            
                65,660
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2008
             | 
            
                +1.20 / +2.86%
             |             
            
                43.20
             |           
            
                43.20
             |               
            
                43.20
             |                           
            
                43.20
             | 
            
                43.20
             |                     
            
                0.74
             |                                 
            
                9,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2008
             | 
            
                +1.20 / +2.94%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                39.70
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                0.72
             |                                 
            
                14,330
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2008
             | 
            
                +1.10 / +2.77%
             |             
            
                38.80
             |           
            
                40.80
             |               
            
                38.60
             |                           
            
                40.80
             | 
            
                40.80
             |                     
            
                0.70
             |                                 
            
                50,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |