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            | 
                    Closing price on 2/28/2012
                 |  |  
    
        |           
                
                    | Open | 17.90 |  
                    | High | 17.90 |  
                    | Low | 17.50 |  
                    | Volume | 14,910 |  
                    | Split-adjusted Price | 9.26 |  
                
             | 
 |  C21 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/28/2012 | -0.30 / -1.69% | 17.90 | 17.90 | 17.50 | 17.50 | 17.50 | 9.26 | 14,910 |   |  
            | 2/27/2012 | -0.10 / -0.56% | 17.90 | 17.90 | 17.50 | 17.80 | 17.80 | 9.42 | 1,740 |   |  			
            | 2/24/2012 | +0.10 / +0.56% | 17.80 | 17.90 | 17.50 | 17.90 | 17.90 | 9.47 | 11,490 |   |  
            | 2/23/2012 | -0.10 / -0.56% | 18.10 | 18.10 | 17.30 | 17.80 | 17.80 | 9.42 | 5,260 |   |  			
            | 2/22/2012 | -0.40 / -2.19% | 18.10 | 18.10 | 17.80 | 17.90 | 17.90 | 9.47 | 10,160 |   |  
            | 2/21/2012 | +0.50 / +2.81% | 18.30 | 18.30 | 18.30 | 18.30 | 18.30 | 9.68 | 10 |   |  			
            | 2/20/2012 | +0.80 / +4.71% | 17.20 | 17.80 | 16.80 | 17.80 | 17.80 | 9.42 | 9,920 |   |  
            | 2/17/2012 | 0.00 / 0.00% | 17.00 | 17.00 | 17.00 | 17.00 | 17.00 | 8.99 | 10 |   |  			
            | 2/16/2012 | 0.00 / 0.00% | 17.00 | 17.00 | 17.00 | 17.00 | 17.00 | 8.99 | 15,520 |   |  
            | 2/15/2012 | 0.00 / 0.00% | 17.00 | 17.00 | 16.50 | 17.00 | 17.00 | 8.99 | 1,270 |   |  			
            | 2/14/2012 | -0.10 / -0.58% | 17.10 | 17.10 | 16.70 | 17.00 | 17.00 | 8.99 | 120 |   |  
            | 2/13/2012 | +0.10 / +0.59% | 17.00 | 17.10 | 17.00 | 17.10 | 17.10 | 9.05 | 5,080 |   |  			
            | 2/10/2012 | 0.00 / 0.00% | 16.90 | 17.00 | 16.90 | 17.00 | 17.00 | 8.99 | 2,040 |   |  
            | 2/9/2012 | -0.20 / -1.16% | 17.20 | 17.20 | 16.40 | 17.00 | 17.00 | 8.99 | 1,920 |   |  			
            | 2/8/2012 | 0.00 / 0.00% | 17.20 | 17.20 | 17.00 | 17.20 | 17.20 | 9.10 | 620 |   |  
            | 2/7/2012 | +0.20 / +1.18% | 17.00 | 17.20 | 17.00 | 17.20 | 17.20 | 9.10 | 18,280 |   |  			
            | 2/6/2012 | -0.50 / -2.86% | 17.50 | 17.50 | 17.00 | 17.00 | 17.00 | 8.99 | 3,230 |   |  
            | 2/3/2012 | +0.40 / +2.34% | 17.50 | 17.50 | 17.50 | 17.50 | 17.50 | 9.26 | 70 |   |  			
            | 2/2/2012 | -0.70 / -3.93% | 17.00 | 17.80 | 17.00 | 17.10 | 17.10 | 9.05 | 18,770 |   |  
            | 2/1/2012 | 0.00 / 0.00% | 17.00 | 17.90 | 17.00 | 17.80 | 17.80 | 9.42 | 3,860 |   |  			
            | 1/31/2012 | -0.90 / -4.81% | 17.80 | 18.50 | 17.80 | 17.80 | 17.80 | 9.42 | 1,640 |   |  
            | 1/30/2012 | +0.80 / +4.47% | 18.70 | 18.70 | 18.70 | 18.70 | 18.70 | 9.89 | 800 |   |  			
            | 1/20/2012 | +0.40 / +2.29% | 18.00 | 18.00 | 17.90 | 17.90 | 17.90 | 9.47 | 1,860 |   |  
            | 1/19/2012 | -0.10 / -0.57% | 17.50 | 17.50 | 17.50 | 17.50 | 17.50 | 9.26 | 360 |   |  			
            | 1/18/2012 | 0.00 / 0.00% | 17.60 | 17.60 | 17.60 | 17.60 | 17.60 | 9.31 | 950 |   |  
            | 1/17/2012 | 0.00 / 0.00% | 17.50 | 18.30 | 17.50 | 17.60 | 17.60 | 9.31 | 16,940 |   |  			
            | 1/16/2012 | -0.30 / -1.68% | 17.50 | 17.60 | 17.10 | 17.60 | 17.60 | 9.31 | 3,220 |   |  
            | 1/13/2012 | +0.10 / +0.56% | 17.90 | 17.90 | 17.90 | 17.90 | 17.90 | 9.47 | 10 |   |  			
            | 1/12/2012 | +0.40 / +2.30% | 17.80 | 17.80 | 17.80 | 17.80 | 17.80 | 9.42 | 70 |   |  
            | 1/11/2012 | 0.00 / 0.00% | 17.60 | 17.70 | 17.40 | 17.40 | 17.40 | 9.21 | 1,420 |   |  |