| 
                 
                    Closing price on 8/22/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.70 | 
                 
                
                    | High | 
                    10.80 | 
                 
                
                    | Low | 
                    10.10 | 
                     
                
                    | Volume | 
                    15,200 | 
                                 
                
                    | Split-adjusted Price | 
                    1.36 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/22/2012
             | 
            
                -0.70 / -6.48%
             |             
            
                10.70
             |           
            
                10.80
             |               
            
                10.10
             |                           
            
                10.10
             | 
            
                10.10
             |                     
            
                1.36
             |                                 
            
                15,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2012
             | 
            
                -0.80 / -6.90%
             |             
            
                11.50
             |           
            
                11.60
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                1.45
             |                                 
            
                90,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2012
             | 
            
                +0.20 / +1.75%
             |             
            
                11.10
             |           
            
                11.60
             |               
            
                11.10
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.56
             |                                 
            
                10,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2012
             | 
            
                -0.10 / -0.87%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.54
             |                                 
            
                23,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2012
             | 
            
                -0.10 / -0.86%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.50
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                1.55
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2012
             | 
            
                +0.10 / +0.87%
             |             
            
                11.50
             |           
            
                11.60
             |               
            
                11.40
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.56
             |                                 
            
                27,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2012
             | 
            
                -0.10 / -0.86%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.50
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                1.55
             |                                 
            
                6,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2012
             | 
            
                +0.20 / +1.75%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.56
             |                                 
            
                10,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2012
             | 
            
                -0.30 / -2.56%
             |             
            
                11.40
             |           
            
                11.50
             |               
            
                11.20
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.54
             |                                 
            
                940,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2012
             | 
            
                +0.20 / +1.74%
             |             
            
                11.70
             |           
            
                12.00
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.58
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2012
             | 
            
                +0.20 / +1.77%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                1.55
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2012
             | 
            
                -0.20 / -1.74%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                1.52
             |                                 
            
                3,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2012
             | 
            
                +0.10 / +0.88%
             |             
            
                11.40
             |           
            
                12.00
             |               
            
                11.40
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                1.55
             |                                 
            
                23,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.54
             |                                 
            
                94
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2012
             | 
            
                +0.40 / +3.64%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.54
             |                                 
            
                10,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                1.48
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2012
             | 
            
                -0.10 / -0.90%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                1.48
             |                                 
            
                16,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2012
             | 
            
                -0.10 / -0.89%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                1.49
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2012
             | 
            
                -0.70 / -5.88%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                1.51
             |                                 
            
                108,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2012
             | 
            
                -0.20 / -1.65%
             |             
            
                11.90
             |           
            
                11.90
             |               
            
                11.90
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                1.60
             |                                 
            
                3,090,644
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                1.63
             |                                 
            
                7,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                1.63
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                12.10
             |               
            
                11.70
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                1.63
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                12.10
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                1.63
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2012
             | 
            
                +0.10 / +0.83%
             |             
            
                12.00
             |           
            
                12.10
             |               
            
                11.60
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                1.63
             |                                 
            
                44,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                12.00
             |               
            
                11.60
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                1.62
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                1.62
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2012
             | 
            
                +0.10 / +0.84%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                11.30
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                1.62
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2012
             | 
            
                -0.40 / -3.25%
             |             
            
                11.90
             |           
            
                12.10
             |               
            
                11.90
             |                           
            
                11.90
             | 
            
                11.90
             |                     
            
                1.60
             |                                 
            
                41,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2012
             | 
            
                +0.50 / +4.24%
             |             
            
                11.80
             |           
            
                12.30
             |               
            
                11.80
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                1.66
             |                                 
            
                28,600
             |  
            
                 
             |                                                              
             
    
         
    
    
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