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                    Closing price on 6/10/2009
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        |           
                
                    | Open | 72.50 |  
                    | High | 73.00 |  
                    | Low | 72.50 |  
                    | Volume | 13,020 |  
                    | Split-adjusted Price | 1.40 |  
                
             | 
 |  VSC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/10/2009 | -3.50 / -4.61% | 72.50 | 73.00 | 72.50 | 72.50 | 72.50 | 1.40 | 13,020 |   |  
            | 6/9/2009 | -0.50 / -0.65% | 75.00 | 76.00 | 74.00 | 76.00 | 76.00 | 1.47 | 57,620 |   |  			
            | 6/8/2009 | +1.50 / +2.00% | 75.50 | 76.50 | 75.00 | 76.50 | 76.50 | 1.48 | 113,340 |   |  
            | 6/5/2009 | +1.00 / +1.35% | 75.50 | 76.00 | 74.50 | 75.00 | 75.00 | 1.41 | 116,370 |   |  			
            | 6/4/2009 | -0.50 / -0.67% | 74.50 | 75.50 | 74.00 | 74.00 | 74.00 | 1.40 | 38,700 |   |  
            | 6/3/2009 | -0.50 / -0.67% | 72.00 | 74.50 | 72.00 | 74.50 | 74.50 | 1.40 | 102,930 |   |  			
            | 6/2/2009 | +2.50 / +3.45% | 76.00 | 76.00 | 75.00 | 75.00 | 75.00 | 1.41 | 64,910 |   |  
            | 6/1/2009 | +3.00 / +4.32% | 71.00 | 72.50 | 71.00 | 72.50 | 72.50 | 1.37 | 83,060 |   |  			
            | 5/29/2009 | -0.50 / -0.71% | 70.50 | 71.00 | 68.00 | 69.50 | 69.50 | 1.31 | 33,540 |   |  
            | 5/28/2009 | +2.50 / +3.70% | 70.50 | 70.50 | 69.00 | 70.00 | 70.00 | 1.32 | 109,140 |   |  			
            | 5/27/2009 | +3.00 / +4.65% | 67.50 | 67.50 | 67.50 | 67.50 | 67.50 | 1.27 | 58,860 |   |  
            | 5/26/2009 | +3.00 / +4.88% | 64.50 | 64.50 | 64.50 | 64.50 | 64.50 | 1.22 | 39,700 |   |  			
            | 5/25/2009 | +2.50 / +4.24% | 61.50 | 61.50 | 61.50 | 61.50 | 61.50 | 1.16 | 8,280 |   |  
            | 5/22/2009 | -3.00 / -4.84% | 60.00 | 62.50 | 59.00 | 59.00 | 59.00 | 1.11 | 23,160 |   |  			
            | 5/21/2009 | -1.00 / -1.59% | 64.00 | 64.00 | 60.00 | 62.00 | 62.00 | 1.17 | 69,840 |   |  
            | 5/20/2009 | +3.00 / +5.00% | 60.00 | 63.00 | 59.00 | 63.00 | 63.00 | 1.19 | 106,710 |   |  			
            | 5/19/2009 | 0.00 / 0.00% | 60.00 | 60.00 | 59.50 | 60.00 | 60.00 | 1.13 | 47,180 |   |  
            | 5/18/2009 | -1.00 / -1.64% | 60.00 | 61.00 | 60.00 | 60.00 | 60.00 | 1.13 | 20,540 |   |  			
            | 5/15/2009 | +2.50 / +4.27% | 61.00 | 61.00 | 60.50 | 61.00 | 61.00 | 1.15 | 12,180 |   |  
            | 5/14/2009 | -2.50 / -4.10% | 61.00 | 61.00 | 58.50 | 58.50 | 58.50 | 1.10 | 55,020 |   |  			
            | 5/13/2009 | 0.00 / 0.00% | 63.00 | 63.00 | 60.00 | 61.00 | 61.00 | 1.15 | 10,370 |   |  
            | 5/12/2009 | +2.50 / +4.27% | 58.00 | 61.00 | 57.50 | 61.00 | 61.00 | 1.15 | 28,420 |   |  			
            | 5/11/2009 | +2.00 / +3.54% | 58.50 | 59.00 | 58.50 | 58.50 | 58.50 | 1.10 | 14,640 |   |  
            | 5/8/2009 | +0.50 / +0.89% | 55.00 | 57.00 | 55.00 | 56.50 | 56.50 | 1.07 | 30,210 |   |  			
            | 5/7/2009 | +2.00 / +3.70% | 55.00 | 56.00 | 53.50 | 56.00 | 56.00 | 1.06 | 41,180 |   |  
            | 5/6/2009 | -2.00 / -3.57% | 54.00 | 55.00 | 53.50 | 54.00 | 54.24 | 1.02 | 17,550 |   |  			
            | 5/5/2009 | +2.50 / +4.67% | 56.00 | 56.00 | 56.00 | 56.00 | 56.00 | 1.06 | 28,540 |   |  
            | 5/4/2009 | +2.50 / +4.90% | 53.50 | 53.50 | 53.50 | 53.50 | 53.50 | 1.01 | 11,010 |   |  			
            | 4/29/2009 | +1.10 / +2.20% | 48.60 | 51.00 | 48.60 | 51.00 | 51.00 | 0.96 | 16,230 |   |  
            | 4/28/2009 | +1.00 / +2.04% | 47.50 | 50.00 | 47.50 | 49.90 | 49.90 | 0.94 | 12,390 |   |  |