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                    Closing price on 8/21/2009
                 |  |  
    
        |           
                
                    | Open | 91.50 |  
                    | High | 92.00 |  
                    | Low | 88.00 |  
                    | Volume | 20,680 |  
                    | Split-adjusted Price | 1.73 |  
                
             | 
 |  VSC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/21/2009 | -0.50 / -0.56% | 91.50 | 92.00 | 88.00 | 89.50 | 89.50 | 1.73 | 20,680 |   |  
            | 8/20/2009 | +3.50 / +4.05% | 88.00 | 90.00 | 87.00 | 90.00 | 90.00 | 1.74 | 41,200 |   |  			
            | 8/19/2009 | +1.00 / +1.17% | 87.00 | 88.00 | 86.00 | 86.50 | 86.50 | 1.68 | 29,920 |   |  
            | 8/18/2009 | +0.50 / +0.59% | 83.50 | 85.50 | 83.50 | 85.50 | 85.50 | 1.66 | 34,300 |   |  			
            | 8/17/2009 | 0.00 / 0.00% | 86.00 | 86.00 | 85.00 | 85.00 | 85.00 | 1.65 | 25,120 |   |  
            | 8/14/2009 | 0.00 / 0.00% | 84.50 | 85.00 | 84.50 | 85.00 | 85.00 | 1.65 | 28,910 |   |  			
            | 8/13/2009 | -1.50 / -1.73% | 85.50 | 87.00 | 85.00 | 85.00 | 85.00 | 1.65 | 37,650 |   |  
            | 8/12/2009 | +1.50 / +1.76% | 85.00 | 86.50 | 85.00 | 86.50 | 86.50 | 1.68 | 41,890 |   |  			
            | 8/11/2009 | 0.00 / 0.00% | 85.00 | 85.00 | 84.50 | 85.00 | 85.00 | 1.65 | 20,650 |   |  
            | 8/10/2009 | +0.50 / +0.59% | 84.00 | 85.50 | 84.00 | 85.00 | 85.00 | 1.65 | 53,140 |   |  			
            | 8/7/2009 | 0.00 / 0.00% | 83.00 | 84.50 | 83.00 | 84.50 | 84.50 | 1.64 | 28,950 |   |  
            | 8/6/2009 | -1.00 / -1.17% | 85.00 | 86.00 | 83.00 | 84.50 | 84.50 | 1.64 | 18,290 |   |  			
            | 8/5/2009 | +4.00 / +4.91% | 81.50 | 85.50 | 81.50 | 85.50 | 85.50 | 1.66 | 55,610 |   |  
            | 8/4/2009 | 0.00 / 0.00% | 83.50 | 83.50 | 81.50 | 81.50 | 81.50 | 1.58 | 19,020 |   |  			
            | 8/3/2009 | -0.50 / -0.61% | 83.00 | 84.00 | 81.00 | 81.50 | 81.50 | 1.58 | 35,490 |   |  
            | 7/31/2009 | +3.50 / +4.46% | 81.50 | 82.00 | 80.50 | 82.00 | 82.00 | 1.59 | 38,930 |   |  			
            | 7/30/2009 | 0.00 / 0.00% | 78.00 | 78.50 | 77.00 | 78.50 | 78.50 | 1.52 | 25,580 |   |  
            | 7/29/2009 | -1.00 / -1.26% | 79.50 | 80.00 | 78.00 | 78.50 | 78.50 | 1.52 | 58,470 |   |  			
            | 7/28/2009 | -0.50 / -0.63% | 80.00 | 81.00 | 79.00 | 79.50 | 79.50 | 1.54 | 66,890 |   |  
            | 7/27/2009 | +2.50 / +3.23% | 80.00 | 80.00 | 78.00 | 80.00 | 80.00 | 1.55 | 83,540 |   |  			
            | 7/24/2009 | +3.50 / +4.73% | 77.50 | 77.50 | 77.00 | 77.50 | 77.50 | 1.50 | 129,260 |   |  
            | 7/23/2009 | +1.50 / +2.07% | 71.50 | 74.00 | 71.50 | 74.00 | 74.00 | 1.43 | 38,940 |   |  			
            | 7/22/2009 | +1.00 / +1.40% | 71.50 | 74.50 | 71.50 | 72.50 | 72.50 | 1.40 | 110,750 |   |  
            | 7/21/2009 | +3.00 / +4.38% | 69.00 | 71.50 | 69.00 | 71.50 | 71.50 | 1.39 | 30,880 |   |  			
            | 7/20/2009 | -3.00 / -4.20% | 69.00 | 70.50 | 68.00 | 68.50 | 68.50 | 1.33 | 12,600 |   |  
            | 7/17/2009 | -0.50 / -0.69% | 74.00 | 74.00 | 70.00 | 71.50 | 71.50 | 1.39 | 32,550 |   |  			
            | 7/16/2009 | +3.00 / +4.35% | 72.00 | 72.00 | 72.00 | 72.00 | 72.00 | 1.39 | 28,240 |   |  
            | 7/15/2009 | +3.00 / +4.55% | 69.00 | 69.00 | 69.00 | 69.00 | 69.00 | 1.34 | 47,640 |   |  			
            | 7/14/2009 | +0.50 / +0.76% | 65.50 | 66.00 | 63.50 | 66.00 | 66.00 | 1.28 | 23,290 |   |  
            | 7/13/2009 | -2.50 / -3.68% | 66.00 | 68.00 | 65.50 | 65.50 | 65.50 | 1.27 | 23,400 |   |  |