| 
                 
                    Closing price on 5/2/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.60 | 
                 
                
                    | High | 
                    6.60 | 
                 
                
                    | Low | 
                    6.60 | 
                     
                
                    | Volume | 
                    10,020 | 
                                 
                
                    | Split-adjusted Price | 
                    6.12 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VNG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/2/2012
             | 
            
                +0.30 / +4.76%
             |             
            
                6.60
             |           
            
                6.60
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.60
             |                     
            
                6.12
             |                                 
            
                10,020
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2012
             | 
            
                +0.30 / +5.00%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.84
             |                                 
            
                47,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.00
             |           
            
                6.20
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.56
             |                                 
            
                3,580
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2012
             | 
            
                -0.30 / -4.76%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.56
             |                                 
            
                13,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2012
             | 
            
                0.00 / 0.00%
             |             
            
                6.00
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.84
             |                                 
            
                12,830
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2012
             | 
            
                +0.10 / +1.61%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                5.90
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.84
             |                                 
            
                2,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2012
             | 
            
                +0.20 / +3.33%
             |             
            
                6.00
             |           
            
                6.20
             |               
            
                5.90
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.75
             |                                 
            
                2,120
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2012
             | 
            
                +0.20 / +3.45%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.80
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.56
             |                                 
            
                19,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2012
             | 
            
                +0.20 / +3.57%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.38
             |                                 
            
                26,690
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2012
             | 
            
                -0.20 / -3.45%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                5.19
             |                                 
            
                17,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2012
             | 
            
                +0.10 / +1.75%
             |             
            
                5.50
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.38
             |                                 
            
                15,730
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                5.28
             |                                 
            
                8,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2012
             | 
            
                +0.20 / +3.64%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                5.28
             |                                 
            
                8,380
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2012
             | 
            
                +0.20 / +3.77%
             |             
            
                5.40
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.10
             |                                 
            
                13,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2012
             | 
            
                +0.20 / +3.92%
             |             
            
                5.10
             |           
            
                5.30
             |               
            
                5.00
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                4.91
             |                                 
            
                9,140
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2012
             | 
            
                -0.10 / -1.92%
             |             
            
                5.10
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                4.73
             |                                 
            
                6,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2012
             | 
            
                -0.20 / -3.70%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                4.82
             |                                 
            
                1,050
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2012
             | 
            
                +0.20 / +3.85%
             |             
            
                5.00
             |           
            
                5.40
             |               
            
                5.00
             |                           
            
                5.40
             | 
            
                5.40
             |                     
            
                5.00
             |                                 
            
                970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2012
             | 
            
                -0.30 / -5.45%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                4.82
             |                                 
            
                7,720
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2012
             | 
            
                0.00 / 0.00%
             |             
            
                5.40
             |           
            
                5.60
             |               
            
                5.30
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.10
             |                                 
            
                18,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2012
             | 
            
                -0.20 / -3.51%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.10
             |                                 
            
                5,520
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                -0.10 / -1.72%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                5.28
             |                                 
            
                5,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2012
             | 
            
                -0.30 / -4.92%
             |             
            
                5.90
             |           
            
                6.10
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.38
             |                                 
            
                18,410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2012
             | 
            
                +0.10 / +1.67%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                5.80
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                5.65
             |                                 
            
                65,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2012
             | 
            
                +0.20 / +3.45%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.56
             |                                 
            
                64,380
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2012
             | 
            
                +0.20 / +3.57%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                5.38
             |                                 
            
                53,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2012
             | 
            
                +0.20 / +3.70%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.30
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                5.19
             |                                 
            
                82,030
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2012
             | 
            
                +0.20 / +3.85%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.40
             |                     
            
                5.00
             |                                 
            
                1,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2012
             | 
            
                +0.20 / +4.00%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                4.82
             |                                 
            
                11,050
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                +0.20 / +4.17%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                4.63
             |                                 
            
                17,950
             |  
            
                 
             |                                                              
             
    
         
    
    
 |