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                    Closing price on 6/18/2010
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        |           
                
                    | Open | 66.90 |  
                    | High | 68.00 |  
                    | Low | 63.50 |  
                    | Volume | 30,500 |  
                    | Split-adjusted Price | 51.77 |  
                
             | 
 |  V21 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 6/16/2010 | +2.90 / +5.00% | 58.00 | 60.90 | 58.00 | 60.90 | 60.90 | 47.06 | 25,000 |   |  
            | 6/15/2010 | 0.00 / 0.00% | 58.20 | 59.60 | 55.00 | 58.00 | 58.00 | 44.82 | 21,500 |   |  			
            | 6/14/2010 | +0.60 / +1.05% | 59.90 | 59.90 | 57.40 | 58.00 | 58.00 | 44.82 | 5,600 |   |  
            | 6/11/2010 | -0.50 / -0.86% | 57.50 | 59.00 | 57.30 | 57.40 | 57.40 | 44.35 | 38,400 |   |  			
            | 6/10/2010 | +3.40 / +6.24% | 58.80 | 58.80 | 56.00 | 57.90 | 57.90 | 44.74 | 12,900 |   |  
            | 6/9/2010 | -0.40 / -0.73% | 53.10 | 57.00 | 53.10 | 54.50 | 54.50 | 42.11 | 36,000 |   |  			
            | 6/8/2010 | -0.50 / -0.90% | 54.50 | 54.90 | 52.50 | 54.90 | 54.90 | 42.42 | 7,100 |   |  
            | 6/7/2010 | -1.40 / -2.46% | 58.90 | 59.00 | 52.50 | 55.40 | 55.40 | 42.81 | 16,600 |   |  			
            | 6/4/2010 | +2.80 / +5.19% | 52.00 | 56.80 | 52.00 | 56.80 | 56.80 | 43.89 | 17,800 |   |  
            | 6/3/2010 | +2.60 / +5.06% | 52.50 | 54.90 | 52.00 | 54.00 | 54.00 | 41.73 | 37,900 |   |  			
            | 6/2/2010 | -0.80 / -1.53% | 51.20 | 53.90 | 50.00 | 51.40 | 51.40 | 39.72 | 9,000 |   |  
            | 6/1/2010 | -0.50 / -0.95% | 49.90 | 52.20 | 49.90 | 52.20 | 52.20 | 40.34 | 11,600 |   |  			
            | 5/31/2010 | -2.10 / -3.83% | 54.50 | 54.50 | 51.60 | 52.70 | 52.70 | 40.72 | 8,400 |   |  
            | 5/28/2010 | +4.20 / +8.30% | 53.00 | 54.80 | 51.30 | 54.80 | 54.80 | 42.35 | 33,100 |   |  			
            | 5/27/2010 | +0.80 / +1.61% | 53.00 | 53.50 | 48.00 | 50.60 | 50.60 | 39.10 | 27,500 |   |  
            | 5/26/2010 | +5.80 / +13.18% | 50.90 | 50.90 | 46.90 | 49.80 | 49.80 | 38.48 | 26,600 |   |  			
            | 5/25/2010 | -1.50 / -3.30% | 48.40 | 48.40 | 42.50 | 44.00 | 44.00 | 34.00 | 20,500 |   |  
            | 5/24/2010 | -1.50 / -3.19% | 46.00 | 46.00 | 45.20 | 45.50 | 45.50 | 35.16 | 28,500 |   |  			
            | 5/21/2010 | -6.50 / -12.15% | 51.00 | 51.00 | 47.00 | 47.00 | 47.00 | 36.32 | 1,700 |   |  
            | 5/20/2010 | +4.20 / +8.52% | 48.30 | 55.00 | 48.30 | 53.50 | 53.50 | 41.34 | 35,600 |   |  			
            | 5/19/2010 | -2.70 / -5.19% | 55.90 | 56.00 | 49.30 | 49.30 | 49.30 | 38.10 | 14,800 |   |  
            | 5/18/2010 | -2.00 / -3.70% | 55.50 | 55.50 | 52.00 | 52.00 | 52.00 | 40.18 | 13,400 |   |  			
            | 5/17/2010 | -2.60 / -4.59% | 55.00 | 57.00 | 51.60 | 54.00 | 54.00 | 41.73 | 3,600 |   |  
            | 5/14/2010 | +3.60 / +6.79% | 51.00 | 56.60 | 50.10 | 56.60 | 56.60 | 43.74 | 8,100 |   |  			
            | 5/13/2010 | -3.10 / -5.53% | 59.00 | 59.00 | 52.40 | 53.00 | 53.00 | 40.95 | 45,200 |   |  
            | 5/12/2010 | -3.70 / -6.19% | 62.00 | 62.00 | 56.10 | 56.10 | 56.10 | 43.35 | 66,900 |   |  			
            | 5/11/2010 | -0.20 / -0.33% | 59.50 | 62.80 | 57.30 | 59.80 | 59.80 | 46.21 | 18,300 |   |  
            | 5/10/2010 | -1.10 / -1.80% | 61.40 | 61.40 | 58.20 | 60.00 | 60.00 | 46.36 | 32,800 |   |  |