| 
                 
                    Closing price on 2/20/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.30 | 
                 
                
                    | High | 
                    11.30 | 
                 
                
                    | Low | 
                    11.30 | 
                     
                
                    | Volume | 
                    52,400 | 
                                 
                
                    | Split-adjusted Price | 
                    1.29 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/20/2012
             | 
            
                +0.60 / +5.61%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                1.29
             |                                 
            
                52,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2012
             | 
            
                +0.20 / +1.90%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.20
             |                           
            
                10.70
             | 
            
                10.70
             |                     
            
                1.22
             |                                 
            
                15,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2012
             | 
            
                -0.10 / -0.94%
             |             
            
                10.30
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                1.20
             |                                 
            
                7,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                1.21
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2012
             | 
            
                -0.20 / -1.85%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.20
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                1.21
             |                                 
            
                8,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2012
             | 
            
                -0.50 / -4.42%
             |             
            
                10.70
             |           
            
                11.80
             |               
            
                10.70
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                1.23
             |                                 
            
                11,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2012
             | 
            
                -0.20 / -1.74%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                1.29
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2012
             | 
            
                -0.90 / -7.26%
             |             
            
                11.80
             |           
            
                12.60
             |               
            
                11.50
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                1.31
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2012
             | 
            
                +1.10 / +9.73%
             |             
            
                11.70
             |           
            
                12.40
             |               
            
                11.60
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                1.42
             |                                 
            
                10,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2012
             | 
            
                -0.70 / -5.83%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                1.29
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2012
             | 
            
                -0.60 / -4.76%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                1.37
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2012
             | 
            
                -0.90 / -6.67%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                1.44
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2012
             | 
            
                +0.40 / +3.05%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                1.54
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2012
             | 
            
                0.00 / 0.00%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                1.50
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2012
             | 
            
                0.00 / 0.00%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                1.50
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2012
             | 
            
                +0.60 / +4.80%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                1.50
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                1.43
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2012
             | 
            
                +0.80 / +6.84%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                1.43
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2012
             | 
            
                +0.10 / +0.86%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.70
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.34
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.33
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2012
             | 
            
                +0.20 / +1.75%
             |             
            
                11.70
             |           
            
                11.70
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.33
             |                                 
            
                22,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.30
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.30
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2012
             | 
            
                +0.70 / +6.54%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.30
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |