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                    Closing price on 7/28/2010
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        |           
                
                    | Open | 58.90 |  
                    | High | 58.90 |  
                    | Low | 58.90 |  
                    | Volume | 4,000 |  
                    | Split-adjusted Price | 45.51 |  
                
             | 
 |  V21 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/28/2010 | +1.00 / +1.73% | 58.90 | 58.90 | 58.90 | 58.90 | 58.90 | 45.51 | 4,000 |   |  
            | 7/27/2010 | 0.00 / 0.00% | 57.90 | 57.90 | 57.90 | 57.90 | 57.90 | 44.74 | 0 |   |  			
            | 7/26/2010 | +3.90 / +7.22% | 57.90 | 57.90 | 57.90 | 57.90 | 57.90 | 44.74 | 2,000 |   |  
            | 7/23/2010 | +0.80 / +1.50% | 56.00 | 56.80 | 54.00 | 54.00 | 54.00 | 41.73 | 2,600 |   |  			
            | 7/22/2010 | +0.20 / +0.38% | 53.20 | 53.20 | 53.20 | 53.20 | 53.20 | 41.11 | 300 |   |  
            | 7/21/2010 | -3.40 / -6.03% | 53.00 | 53.00 | 53.00 | 53.00 | 53.00 | 40.95 | 1,000 |   |  			
            | 7/20/2010 | +2.90 / +5.42% | 56.40 | 56.40 | 56.40 | 56.40 | 56.40 | 43.58 | 4,200 |   |  
            | 7/19/2010 | -3.30 / -5.81% | 52.50 | 53.50 | 52.50 | 53.50 | 53.50 | 41.34 | 300 |   |  			
            | 7/16/2010 | +1.50 / +2.71% | 52.60 | 56.80 | 52.60 | 56.80 | 56.80 | 43.89 | 9,000 |   |  
            | 7/15/2010 | -4.10 / -6.90% | 55.30 | 55.30 | 55.30 | 55.30 | 55.30 | 42.73 | 6,300 |   |  			
            | 7/14/2010 | +1.40 / +2.41% | 59.40 | 59.40 | 59.40 | 59.40 | 59.40 | 45.90 | 5,000 |   |  
            | 7/13/2010 | +0.10 / +0.17% | 60.90 | 60.90 | 58.00 | 58.00 | 58.00 | 44.82 | 11,800 |   |  			
            | 7/12/2010 | +2.20 / +3.95% | 57.90 | 57.90 | 57.90 | 57.90 | 57.90 | 44.74 | 12,700 |   |  
            | 7/9/2010 | -4.10 / -6.86% | 55.70 | 55.70 | 55.70 | 55.70 | 55.70 | 43.04 | 18,600 |   |  			
            | 7/8/2010 | +0.90 / +1.53% | 59.80 | 59.80 | 59.80 | 59.80 | 59.80 | 46.21 | 13,800 |   |  
            | 7/7/2010 | +0.40 / +0.68% | 58.90 | 58.90 | 58.90 | 58.90 | 58.90 | 45.51 | 9,900 |   |  			
            | 7/6/2010 | +1.50 / +2.63% | 58.50 | 58.50 | 58.50 | 58.50 | 58.50 | 45.20 | 100 |   |  
            | 7/5/2010 | -0.50 / -0.87% | 63.00 | 63.00 | 57.00 | 57.00 | 57.00 | 44.05 | 5,200 |   |  			
            | 7/2/2010 | -2.90 / -4.80% | 60.90 | 60.90 | 57.50 | 57.50 | 57.50 | 44.43 | 6,000 |   |  
            | 7/1/2010 | -1.50 / -2.42% | 56.70 | 60.50 | 56.70 | 60.40 | 60.40 | 46.67 | 1,000 |   |  			
            | 6/30/2010 | -0.10 / -0.16% | 65.00 | 66.30 | 57.80 | 61.90 | 61.90 | 47.83 | 14,400 |   |  
            | 6/29/2010 | 0.00 / 0.00% | 66.30 | 66.30 | 58.00 | 62.00 | 62.00 | 47.91 | 2,300 |   |  			
            | 6/28/2010 | +3.10 / +5.26% | 62.00 | 62.00 | 62.00 | 62.00 | 62.00 | 47.91 | 2,000 |   |  
            | 6/25/2010 | -3.20 / -5.15% | 59.00 | 63.00 | 57.20 | 58.90 | 58.90 | 45.51 | 4,600 |   |  			
            | 6/24/2010 | -0.40 / -0.64% | 62.80 | 62.80 | 58.30 | 62.10 | 62.10 | 47.99 | 3,800 |   |  
            | 6/23/2010 | -3.00 / -4.58% | 63.90 | 63.90 | 60.00 | 62.50 | 62.50 | 48.30 | 6,400 |   |  			
            | 6/22/2010 | +1.50 / +2.34% | 67.40 | 67.40 | 60.70 | 65.50 | 65.50 | 50.61 | 9,500 |   |  
            | 6/21/2010 | -3.00 / -4.48% | 67.90 | 67.90 | 64.00 | 64.00 | 64.00 | 49.45 | 15,800 |   |  			
            | 6/18/2010 | +2.30 / +3.55% | 66.90 | 68.00 | 63.50 | 67.00 | 67.00 | 51.77 | 30,500 |   |  
            | 6/17/2010 | +3.80 / +6.24% | 64.70 | 64.70 | 62.00 | 64.70 | 64.70 | 50.00 | 48,300 |   |  |