| 
                 
                    Closing price on 5/21/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.70 | 
                 
                
                    | High | 
                    12.80 | 
                 
                
                    | Low | 
                    11.60 | 
                     
                
                    | Volume | 
                    364,800 | 
                                 
                
                    | Split-adjusted Price | 
                    1.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VCS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/21/2014
             | 
            
                +1.10 / +9.40%
             |             
            
                11.70
             |           
            
                12.80
             |               
            
                11.60
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                1.72
             |                                 
            
                364,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2014
             | 
            
                +0.10 / +0.86%
             |             
            
                11.00
             |           
            
                11.80
             |               
            
                11.00
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                1.58
             |                                 
            
                200,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2014
             | 
            
                -0.20 / -1.69%
             |             
            
                11.20
             |           
            
                11.70
             |               
            
                11.20
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                1.56
             |                                 
            
                75,220
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2014
             | 
            
                +1.00 / +9.26%
             |             
            
                10.80
             |           
            
                11.80
             |               
            
                10.50
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                1.59
             |                                 
            
                85,208
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2014
             | 
            
                -0.60 / -5.26%
             |             
            
                11.30
             |           
            
                11.80
             |               
            
                10.40
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                1.45
             |                                 
            
                158,810
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2014
             | 
            
                +0.40 / +3.64%
             |             
            
                11.40
             |           
            
                11.60
             |               
            
                10.70
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                1.54
             |                                 
            
                329,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2014
             | 
            
                -0.80 / -6.78%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                10.70
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                1.48
             |                                 
            
                412,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2014
             | 
            
                -1.30 / -9.92%
             |             
            
                12.40
             |           
            
                12.90
             |               
            
                11.80
             |                           
            
                11.80
             | 
            
                11.80
             |                     
            
                1.59
             |                                 
            
                491,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2014
             | 
            
                +0.50 / +3.97%
             |             
            
                12.50
             |           
            
                13.40
             |               
            
                12.50
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                1.76
             |                                 
            
                180,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2014
             | 
            
                -1.40 / -10.00%
             |             
            
                12.60
             |           
            
                13.90
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                1.70
             |                                 
            
                224,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2014
             | 
            
                -0.20 / -1.41%
             |             
            
                14.10
             |           
            
                14.40
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                1.89
             |                                 
            
                212,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2014
             | 
            
                -0.20 / -1.39%
             |             
            
                14.10
             |           
            
                14.20
             |               
            
                13.40
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                1.91
             |                                 
            
                87,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2014
             | 
            
                -0.60 / -4.00%
             |             
            
                14.90
             |           
            
                14.90
             |               
            
                14.10
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                1.94
             |                                 
            
                86,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2014
             | 
            
                -0.30 / -1.96%
             |             
            
                15.10
             |           
            
                15.30
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                2.02
             |                                 
            
                91,012
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2014
             | 
            
                -0.10 / -0.65%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.30
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                2.06
             |                                 
            
                7,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2014
             | 
            
                -0.10 / -0.65%
             |             
            
                15.50
             |           
            
                15.60
             |               
            
                15.40
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                2.07
             |                                 
            
                32,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2014
             | 
            
                +0.10 / +0.65%
             |             
            
                15.40
             |           
            
                15.70
             |               
            
                15.20
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                2.09
             |                                 
            
                18,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2014
             | 
            
                -0.10 / -0.65%
             |             
            
                15.30
             |           
            
                16.00
             |               
            
                15.30
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                2.07
             |                                 
            
                92,376
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2014
             | 
            
                +0.50 / +3.33%
             |             
            
                15.00
             |           
            
                15.60
             |               
            
                14.60
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                2.09
             |                                 
            
                116,296
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2014
             | 
            
                -0.50 / -3.23%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.80
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                2.02
             |                                 
            
                160,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2014
             | 
            
                -1.00 / -6.06%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                2.09
             |                                 
            
                96,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2014
             | 
            
                +0.20 / +1.23%
             |             
            
                16.30
             |           
            
                16.60
             |               
            
                16.30
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                2.22
             |                                 
            
                86,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2014
             | 
            
                -0.50 / -2.98%
             |             
            
                16.90
             |           
            
                16.90
             |               
            
                15.40
             |                           
            
                16.30
             | 
            
                16.30
             |                     
            
                2.19
             |                                 
            
                255,120
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2014
             | 
            
                -0.90 / -5.08%
             |             
            
                17.60
             |           
            
                17.70
             |               
            
                16.80
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                2.26
             |                                 
            
                192,116
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2014
             | 
            
                -0.40 / -2.21%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                2.38
             |                                 
            
                152,918
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2014
             | 
            
                -0.30 / -1.63%
             |             
            
                18.40
             |           
            
                18.40
             |               
            
                18.00
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                2.44
             |                                 
            
                143,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2014
             | 
            
                +0.30 / +1.66%
             |             
            
                18.00
             |           
            
                18.50
             |               
            
                17.90
             |                           
            
                18.40
             | 
            
                18.40
             |                     
            
                2.48
             |                                 
            
                585,710
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2014
             | 
            
                0.00 / 0.00%
             |             
            
                18.10
             |           
            
                18.20
             |               
            
                17.90
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                2.44
             |                                 
            
                136,382
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2014
             | 
            
                0.00 / 0.00%
             |             
            
                17.80
             |           
            
                18.20
             |               
            
                17.80
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                2.44
             |                                 
            
                53,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2014
             | 
            
                -0.30 / -1.63%
             |             
            
                18.40
             |           
            
                18.50
             |               
            
                18.10
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                2.44
             |                                 
            
                105,453
             |  
            
                 
             |                                                              
             
    
         
    
    
 |