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                    Closing price on 4/6/2012
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        |           
                
                    | Open | 5.50 |  
                    | High | 5.50 |  
                    | Low | 5.20 |  
                    | Volume | 1,050 |  
                    | Split-adjusted Price | 4.82 |  
                
             | 
 |  VNG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 3/16/2012 | +0.20 / +4.35% | 4.60 | 4.80 | 4.40 | 4.80 | 4.80 | 4.45 | 293,340 |   |  
            | 3/15/2012 | -0.20 / -4.17% | 4.60 | 5.00 | 4.60 | 4.60 | 4.60 | 4.26 | 71,510 |   |  			
            | 3/14/2012 | -0.20 / -4.00% | 4.80 | 4.80 | 4.80 | 4.80 | 4.80 | 4.45 | 21,140 |   |  
            | 3/13/2012 | -0.20 / -3.85% | 5.10 | 5.10 | 5.00 | 5.00 | 5.00 | 4.63 | 21,910 |   |  			
            | 3/12/2012 | -0.20 / -3.70% | 5.20 | 5.20 | 5.20 | 5.20 | 5.20 | 4.82 | 12,370 |   |  
            | 3/9/2012 | -0.20 / -3.57% | 5.40 | 5.40 | 5.40 | 5.40 | 5.40 | 5.00 | 5,170 |   |  			
            | 3/8/2012 | 0.00 / 0.00% | 5.50 | 5.60 | 5.50 | 5.60 | 5.60 | 5.19 | 4,760 |   |  
            | 3/7/2012 | +0.10 / +1.82% | 5.70 | 5.70 | 5.60 | 5.60 | 5.60 | 5.19 | 14,550 |   |  			
            | 3/6/2012 | +0.20 / +3.77% | 5.50 | 5.50 | 5.30 | 5.50 | 5.50 | 5.10 | 66,560 |   |  
            | 3/5/2012 | +0.20 / +3.92% | 5.30 | 5.30 | 5.10 | 5.30 | 5.30 | 4.91 | 139,300 |   |  			
            | 3/2/2012 | -0.20 / -3.77% | 5.10 | 5.20 | 5.10 | 5.10 | 5.10 | 4.73 | 9,610 |   |  
            | 3/1/2012 | -0.20 / -3.64% | 5.40 | 5.40 | 5.30 | 5.30 | 5.30 | 4.91 | 4,600 |   |  			
            | 2/29/2012 | -0.20 / -3.51% | 5.50 | 5.50 | 5.50 | 5.50 | 5.50 | 5.10 | 4,720 |   |  
            | 2/28/2012 | -0.30 / -5.00% | 5.80 | 5.80 | 5.70 | 5.70 | 5.70 | 5.28 | 19,000 |   |  			
            | 2/27/2012 | +0.10 / +1.69% | 5.90 | 6.00 | 5.80 | 6.00 | 6.00 | 5.56 | 260 |   |  
            | 2/24/2012 | +0.20 / +3.51% | 5.90 | 5.90 | 5.90 | 5.90 | 5.90 | 5.47 | 10 |   |  |