| 
                 
                    Closing price on 12/2/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.90 | 
                 
                
                    | High | 
                    4.00 | 
                 
                
                    | Low | 
                    3.70 | 
                     
                
                    | Volume | 
                    288,800 | 
                                 
                
                    | Split-adjusted Price | 
                    2.02 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/2/2011
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.86
             |                     
            
                2.02
             |                                 
            
                288,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2011
             | 
            
                +0.20 / +5.26%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.86
             |                     
            
                2.08
             |                                 
            
                235,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2011
             | 
            
                -0.10 / -2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.87
             |                     
            
                1.97
             |                                 
            
                67,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2011
             | 
            
                -0.20 / -4.88%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                4.04
             |                     
            
                2.02
             |                                 
            
                192,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2011
             | 
            
                +0.10 / +2.50%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.09
             |                     
            
                2.13
             |                                 
            
                341,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2011
             | 
            
                -0.10 / -2.44%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                2.08
             |                                 
            
                109,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2011
             | 
            
                -0.20 / -4.65%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.16
             |                     
            
                2.13
             |                                 
            
                87,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2011
             | 
            
                +0.10 / +2.38%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.20
             |                     
            
                2.23
             |                                 
            
                69,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2011
             | 
            
                -0.20 / -4.55%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.22
             |                     
            
                2.18
             |                                 
            
                196,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.41
             |                     
            
                2.28
             |                                 
            
                91,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2011
             | 
            
                -0.20 / -4.35%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.52
             |                     
            
                2.28
             |                                 
            
                103,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2011
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.58
             |                     
            
                2.39
             |                                 
            
                266,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2011
             | 
            
                +0.10 / +2.22%
             |             
            
                4.50
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.54
             |                     
            
                2.39
             |                                 
            
                330,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2011
             | 
            
                +0.10 / +2.27%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.45
             |                     
            
                2.33
             |                                 
            
                259,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2011
             | 
            
                -0.20 / -4.35%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.51
             |                     
            
                2.28
             |                                 
            
                130,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2011
             | 
            
                +0.10 / +2.22%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.64
             |                     
            
                2.39
             |                                 
            
                157,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2011
             | 
            
                -0.30 / -6.25%
             |             
            
                4.50
             |           
            
                4.80
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.61
             |                     
            
                2.33
             |                                 
            
                150,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2011
             | 
            
                +0.10 / +2.13%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.82
             |                     
            
                2.49
             |                                 
            
                191,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2011
             | 
            
                -0.10 / -2.08%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.87
             |                     
            
                2.44
             |                                 
            
                140,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2011
             | 
            
                -0.20 / -4.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.87
             |                     
            
                2.49
             |                                 
            
                183,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2011
             | 
            
                +0.20 / +4.17%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.70
             |                           
            
                5.00
             | 
            
                4.88
             |                     
            
                2.59
             |                                 
            
                161,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2011
             | 
            
                -0.20 / -4.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.91
             |                     
            
                2.49
             |                                 
            
                185,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2011
             | 
            
                -0.10 / -1.96%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.96
             |                     
            
                2.59
             |                                 
            
                143,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2011
             | 
            
                -0.20 / -3.77%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.16
             |                     
            
                2.65
             |                                 
            
                162,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2011
             | 
            
                -0.10 / -1.85%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.39
             |                     
            
                2.75
             |                                 
            
                177,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2011
             | 
            
                +0.30 / +5.88%
             |             
            
                5.10
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.40
             | 
            
                5.32
             |                     
            
                2.80
             |                                 
            
                336,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2011
             | 
            
                0.00 / 0.00%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.00
             |                           
            
                5.10
             | 
            
                5.13
             |                     
            
                2.65
             |                                 
            
                155,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2011
             | 
            
                -0.10 / -1.92%
             |             
            
                5.10
             |           
            
                5.30
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.06
             |                     
            
                2.65
             |                                 
            
                327,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2011
             | 
            
                -0.20 / -3.70%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.25
             |                     
            
                2.70
             |                                 
            
                111,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2011
             | 
            
                -0.30 / -5.26%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.49
             |                     
            
                2.80
             |                                 
            
                206,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |