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                    Closing price on 9/10/2012
                 |  |  
    
        |           
                
                    | Open | 18.30 |  
                    | High | 18.50 |  
                    | Low | 18.30 |  
                    | Volume | 38,510 |  
                    | Split-adjusted Price | 10.25 |  
                
             | 
 |  C21 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/10/2012 | -0.10 / -0.54% | 18.30 | 18.50 | 18.30 | 18.40 | 18.40 | 10.25 | 38,510 |   |  
            | 9/7/2012 | +0.50 / +2.78% | 18.10 | 18.50 | 17.80 | 18.50 | 18.50 | 10.30 | 110,810 |   |  			
            | 9/6/2012 | -0.10 / -0.55% | 18.10 | 18.20 | 17.50 | 18.00 | 18.00 | 10.02 | 64,560 |   |  
            | 9/5/2012 | -0.10 / -0.55% | 18.20 | 18.20 | 17.90 | 18.10 | 18.10 | 10.08 | 20,330 |   |  			
            | 9/4/2012 | +0.40 / +2.25% | 17.50 | 18.40 | 17.50 | 18.20 | 18.20 | 10.14 | 73,430 |   |  
            | 8/31/2012 | +0.60 / +3.49% | 17.50 | 17.90 | 17.20 | 17.80 | 17.80 | 9.91 | 59,810 |   |  			
            | 8/30/2012 | +0.80 / +4.88% | 16.30 | 17.20 | 16.30 | 17.20 | 17.20 | 9.58 | 110,640 |   |  
            | 8/29/2012 | -0.20 / -1.20% | 16.20 | 16.40 | 16.20 | 16.40 | 16.40 | 9.13 | 11,220 |   |  			
            | 8/28/2012 | +0.20 / +1.22% | 16.00 | 16.60 | 16.00 | 16.60 | 16.60 | 9.24 | 45,720 |   |  
            | 8/27/2012 | -0.10 / -0.61% | 16.40 | 16.40 | 15.90 | 16.40 | 16.40 | 9.13 | 40,710 |   |  			
            | 8/24/2012 | +0.50 / +3.13% | 16.00 | 16.80 | 15.90 | 16.50 | 16.50 | 9.19 | 56,410 |   |  
            | 8/23/2012 | -0.20 / -1.23% | 15.90 | 16.00 | 15.90 | 16.00 | 16.00 | 8.91 | 3,940 |   |  			
            | 8/22/2012 | +0.10 / +0.62% | 16.10 | 16.30 | 15.90 | 16.20 | 16.20 | 9.02 | 45,720 |   |  
            | 8/21/2012 | 0.00 / 0.00% | 15.90 | 16.30 | 15.60 | 16.10 | 16.10 | 8.97 | 32,580 |   |  			
            | 8/20/2012 | 0.00 / 0.00% | 16.00 | 16.10 | 16.00 | 16.10 | 16.10 | 8.97 | 11,930 |   |  
            | 8/17/2012 | 0.00 / 0.00% | 16.00 | 16.20 | 16.00 | 16.10 | 16.10 | 8.97 | 13,100 |   |  			
            | 8/16/2012 | -0.10 / -0.62% | 16.00 | 16.10 | 16.00 | 16.10 | 16.10 | 8.97 | 6,200 |   |  
            | 8/15/2012 | +0.10 / +0.62% | 15.30 | 16.90 | 15.30 | 16.20 | 16.20 | 9.02 | 5,830 |   |  			
            | 8/14/2012 | +0.10 / +0.63% | 16.10 | 16.10 | 16.00 | 16.10 | 16.10 | 8.97 | 2,960 |   |  
            | 8/13/2012 | -0.20 / -1.23% | 15.50 | 16.10 | 15.50 | 16.00 | 16.00 | 8.91 | 7,520 |   |  			
            | 8/10/2012 | 0.00 / 0.00% | 16.80 | 16.90 | 16.00 | 16.20 | 16.20 | 9.02 | 3,740 |   |  
            | 8/9/2012 | 0.00 / 0.00% | 16.80 | 16.80 | 16.20 | 16.20 | 16.20 | 9.02 | 30 |   |  			
            | 8/8/2012 | 0.00 / 0.00% | 16.90 | 16.90 | 16.20 | 16.20 | 16.20 | 9.02 | 500 |   |  
            | 8/7/2012 | -0.30 / -1.82% | 16.00 | 16.20 | 15.90 | 16.20 | 16.20 | 9.02 | 12,400 |   |  			
            | 8/6/2012 | -0.20 / -1.20% | 16.50 | 16.50 | 16.50 | 16.50 | 16.50 | 9.19 | 520 |   |  
            | 8/3/2012 | +0.70 / +4.38% | 16.70 | 16.70 | 15.50 | 16.70 | 16.70 | 9.30 | 750 |   |  			
            | 8/2/2012 | 0.00 / 0.00% | 16.50 | 16.80 | 16.00 | 16.00 | 16.00 | 8.91 | 1,650 |   |  
            | 8/1/2012 | -0.50 / -3.03% | 17.20 | 17.20 | 15.80 | 16.00 | 16.00 | 8.91 | 1,320 |   |  			
            | 7/31/2012 | -0.50 / -2.94% | 17.00 | 17.00 | 16.50 | 16.50 | 16.50 | 9.19 | 160 |   |  
            | 7/30/2012 | +0.40 / +2.41% | 16.00 | 17.10 | 15.80 | 17.00 | 17.00 | 9.47 | 3,440 |   |  |