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                    Closing price on 12/26/2011
                 |  |  
    
        |           
                
                    | Open | 17.20 |  
                    | High | 17.70 |  
                    | Low | 17.10 |  
                    | Volume | 1,520 |  
                    | Split-adjusted Price | 9.36 |  
                
             | 
 |  C21 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/26/2011 | -0.20 / -1.12% | 17.20 | 17.70 | 17.10 | 17.70 | 17.70 | 9.36 | 1,520 |   |  
            | 12/23/2011 | -0.10 / -0.56% | 17.10 | 17.90 | 17.10 | 17.90 | 17.90 | 9.47 | 1,410 |   |  			
            | 12/22/2011 | 0.00 / 0.00% | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 9.52 | 50 |   |  
            | 12/21/2011 | 0.00 / 0.00% | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 9.52 | 1,700 |   |  			
            | 12/20/2011 | -0.40 / -2.17% | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 9.52 | 300 |   |  
            | 12/19/2011 | 0.00 / 0.00% | 18.40 | 18.40 | 18.40 | 18.40 | 18.40 | 9.73 | 0 |   |  			
            | 12/16/2011 | -0.20 / -1.08% | 18.00 | 18.40 | 18.00 | 18.40 | 18.40 | 9.73 | 900 |   |  
            | 12/15/2011 | 0.00 / 0.00% | 18.60 | 18.60 | 18.60 | 18.60 | 18.60 | 9.84 | 100 |   |  			
            | 12/14/2011 | -0.20 / -1.06% | 18.20 | 18.60 | 18.00 | 18.60 | 18.60 | 9.84 | 1,220 |   |  
            | 12/13/2011 | 0.00 / 0.00% | 18.80 | 18.80 | 18.80 | 18.80 | 18.80 | 9.95 | 100 |   |  			
            | 12/12/2011 | +0.70 / +3.87% | 18.80 | 18.80 | 18.80 | 18.80 | 18.80 | 9.95 | 50 |   |  
            | 12/9/2011 | -0.70 / -3.72% | 18.10 | 18.10 | 18.10 | 18.10 | 18.10 | 9.58 | 1,400 |   |  			
            | 12/8/2011 | +0.40 / +2.17% | 18.40 | 18.80 | 18.20 | 18.80 | 18.80 | 9.95 | 4,800 |   |  
            | 12/7/2011 | +0.20 / +1.10% | 18.20 | 18.50 | 18.20 | 18.40 | 18.40 | 9.73 | 4,900 |   |  			
            | 12/6/2011 | -0.50 / -2.67% | 18.60 | 18.60 | 18.20 | 18.20 | 18.20 | 9.63 | 12,590 |   |  
            | 12/5/2011 | 0.00 / 0.00% | 18.70 | 18.70 | 18.70 | 18.70 | 18.70 | 9.89 | 4,130 |   |  			
            | 12/2/2011 | -0.30 / -1.58% | 18.80 | 19.00 | 18.20 | 18.70 | 18.70 | 9.89 | 4,670 |   |  
            | 12/1/2011 | -0.30 / -1.55% | 19.00 | 19.00 | 18.90 | 19.00 | 19.00 | 10.05 | 8,860 |   |  			
            | 11/30/2011 | -0.10 / -0.52% | 19.00 | 19.30 | 18.80 | 19.30 | 19.30 | 10.21 | 2,620 |   |  
            | 11/29/2011 | 0.00 / 0.00% | 19.40 | 19.40 | 19.40 | 19.40 | 19.40 | 10.26 | 160 |   |  			
            | 11/28/2011 | +0.30 / +1.57% | 19.10 | 19.40 | 18.50 | 19.40 | 19.40 | 10.26 | 11,210 |   |  
            | 11/25/2011 | +0.60 / +3.24% | 18.50 | 19.10 | 18.50 | 19.10 | 19.10 | 10.10 | 3,910 |   |  			
            | 11/24/2011 | +0.70 / +3.93% | 18.50 | 18.50 | 18.40 | 18.50 | 18.50 | 9.79 | 1,160 |   |  
            | 11/23/2011 | 0.00 / 0.00% | 17.80 | 17.80 | 17.80 | 17.80 | 17.80 | 9.42 | 200 |   |  			
            | 11/22/2011 | +0.20 / +1.14% | 16.80 | 17.80 | 16.80 | 17.80 | 17.80 | 9.42 | 150 |   |  
            | 11/21/2011 | -0.90 / -4.86% | 19.40 | 19.40 | 17.60 | 17.60 | 17.60 | 9.31 | 1,570 |   |  			
            | 11/18/2011 | +0.50 / +2.78% | 17.10 | 18.50 | 17.10 | 18.50 | 18.50 | 9.79 | 6,370 |   |  
            | 11/17/2011 | +0.80 / +4.65% | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 9.52 | 220 |   |  			
            | 11/16/2011 | 0.00 / 0.00% | 16.40 | 17.20 | 16.40 | 17.20 | 17.20 | 9.10 | 58,234 |   |  
            | 11/15/2011 | 0.00 / 0.00% | 16.60 | 17.20 | 16.60 | 17.20 | 17.20 | 9.10 | 4,370 |   |  |