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            | 
                    Closing price on 11/22/2011
                 |  |  
    
        |           
                
                    | Open | 29.40 |  
                    | High | 29.50 |  
                    | Low | 29.40 |  
                    | Volume | 5,110 |  
                    | Split-adjusted Price | 1.64 |  
                
             | 
 |  VSC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/22/2011 | -0.20 / -0.67% | 29.40 | 29.50 | 29.40 | 29.50 | 29.50 | 1.64 | 5,110 |   |  
            | 11/21/2011 | +0.20 / +0.68% | 28.50 | 29.70 | 28.50 | 29.70 | 29.70 | 1.65 | 12,500 |   |  			
            | 11/18/2011 | 0.00 / 0.00% | 28.50 | 29.50 | 28.50 | 29.50 | 29.50 | 1.64 | 5,100 |   |  
            | 11/17/2011 | +0.20 / +0.68% | 28.80 | 29.50 | 28.80 | 29.50 | 29.50 | 1.64 | 4,050 |   |  			
            | 11/16/2011 | +0.20 / +0.69% | 29.00 | 29.50 | 28.50 | 29.30 | 29.30 | 1.63 | 2,580 |   |  
            | 11/15/2011 | +0.60 / +2.11% | 29.10 | 29.10 | 29.10 | 29.10 | 29.10 | 1.62 | 120 |   |  			
            | 11/14/2011 | -1.40 / -4.68% | 31.20 | 31.20 | 28.50 | 28.50 | 28.50 | 1.58 | 3,320 |   |  
            | 11/11/2011 | -0.10 / -0.33% | 29.50 | 29.90 | 29.50 | 29.90 | 29.90 | 1.66 | 3,600 |   |  			
            | 11/10/2011 | 0.00 / 0.00% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 70 |   |  
            | 11/9/2011 | 0.00 / 0.00% | 29.60 | 30.00 | 29.60 | 30.00 | 30.00 | 1.67 | 1,290 |   |  			
            | 11/8/2011 | +0.50 / +1.69% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 10 |   |  
            | 11/7/2011 | -0.30 / -1.01% | 29.80 | 29.80 | 29.50 | 29.50 | 29.50 | 1.64 | 10,610 |   |  			
            | 11/4/2011 | +0.10 / +0.34% | 29.80 | 30.00 | 29.80 | 29.80 | 29.80 | 1.65 | 2,790 |   |  
            | 11/3/2011 | -0.70 / -2.30% | 30.00 | 30.50 | 29.70 | 29.70 | 29.70 | 1.65 | 400 |   |  			
            | 11/2/2011 | +0.40 / +1.33% | 30.00 | 30.40 | 30.00 | 30.40 | 30.40 | 1.69 | 590 |   |  
            | 11/1/2011 | 0.00 / 0.00% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 2,120 |   |  			
            | 10/31/2011 | -0.70 / -2.28% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 1,300 |   |  
            | 10/28/2011 | +0.70 / +2.33% | 30.00 | 30.70 | 30.00 | 30.70 | 30.70 | 1.70 | 3,040 |   |  			
            | 10/27/2011 | -0.40 / -1.32% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 1,120 |   |  
            | 10/26/2011 | +0.40 / +1.33% | 30.00 | 30.40 | 30.00 | 30.40 | 30.40 | 1.69 | 5,460 |   |  			
            | 10/25/2011 | 0.00 / 0.00% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 1.67 | 2,920 |   |  
            | 10/24/2011 | -0.20 / -0.66% | 31.00 | 31.00 | 30.00 | 30.00 | 30.00 | 1.67 | 1,840 |   |  			
            | 10/21/2011 | -0.30 / -0.98% | 30.00 | 30.40 | 30.00 | 30.20 | 30.20 | 1.68 | 5,600 |   |  
            | 10/20/2011 | +0.30 / +0.99% | 30.70 | 30.70 | 30.50 | 30.50 | 30.50 | 1.69 | 60 |   |  			
            | 10/19/2011 | +0.40 / +1.34% | 30.00 | 31.00 | 30.00 | 30.20 | 30.20 | 1.68 | 4,270 |   |  
            | 10/18/2011 | -0.20 / -0.67% | 30.00 | 30.00 | 29.80 | 29.80 | 29.80 | 1.65 | 3,200 |   |  			
            | 10/17/2011 | -0.10 / -0.33% | 30.20 | 30.20 | 30.00 | 30.00 | 30.00 | 1.67 | 2,750 |   |  
            | 10/14/2011 | -0.50 / -1.63% | 30.50 | 30.50 | 30.10 | 30.10 | 30.10 | 1.67 | 2,020 |   |  			
            | 10/13/2011 | +0.50 / +1.66% | 30.00 | 30.60 | 29.90 | 30.60 | 30.60 | 1.70 | 3,510 |   |  
            | 10/12/2011 | -0.50 / -1.63% | 30.20 | 30.20 | 30.10 | 30.10 | 30.10 | 1.67 | 1,520 |   |  |