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                    Closing price on 12/6/2010
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                    | Open | 16.40 |  
                    | High | 18.20 |  
                    | Low | 16.20 |  
                    | Volume | 125,900 |  
                    | Split-adjusted Price | 3.83 |  
                
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 |  DC4 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/6/2010 | +0.80 / +5.19% | 16.40 | 18.20 | 16.20 | 16.20 | 16.39 | 3.83 | 125,900 |   |  
            | 12/3/2010 | +1.00 / +6.94% | 15.40 | 17.10 | 15.40 | 15.40 | 15.40 | 3.64 | 19,300 |   |  			
            | 12/2/2010 | +1.10 / +8.27% | 13.60 | 16.00 | 13.60 | 14.40 | 14.39 | 3.40 | 109,100 |   |  
            | 12/1/2010 | -0.50 / -3.62% | 13.80 | 15.90 | 13.30 | 13.30 | 13.51 | 3.14 | 36,900 |   |  			
            | 11/30/2010 | +0.70 / +5.34% | 13.40 | 15.30 | 13.40 | 13.80 | 13.80 | 3.26 | 61,600 |   |  
            | 11/29/2010 | +0.50 / +3.97% | 12.00 | 14.60 | 12.00 | 13.10 | 12.92 | 3.10 | 43,500 |   |  			
            | 11/26/2010 | 0.00 / 0.00% | 12.80 | 14.20 | 12.60 | 12.60 | 13.05 | 2.98 | 44,100 |   |  
            | 11/25/2010 | +0.80 / +6.78% | 12.10 | 14.00 | 12.10 | 12.60 | 12.35 | 2.98 | 26,200 |   |  			
            | 11/24/2010 | +0.20 / +1.72% | 11.20 | 13.20 | 11.20 | 11.80 | 11.82 | 2.79 | 11,900 |   |  
            | 11/23/2010 | +0.70 / +6.42% | 11.20 | 12.90 | 11.20 | 11.60 | 11.48 | 2.74 | 16,900 |   |  			
            | 11/22/2010 | -0.60 / -5.22% | 11.10 | 12.30 | 10.90 | 10.90 | 10.98 | 2.58 | 48,500 |   |  
            | 11/19/2010 | -0.60 / -4.96% | 12.50 | 13.90 | 11.50 | 11.50 | 11.66 | 2.72 | 31,200 |   |  			
            | 11/18/2010 | +0.80 / +7.08% | 11.90 | 13.40 | 11.90 | 12.10 | 11.98 | 2.86 | 22,000 |   |  
            | 11/17/2010 | +0.40 / +3.67% | 11.40 | 12.80 | 11.30 | 11.30 | 11.36 | 2.67 | 11,900 |   |  			
            | 11/16/2010 | -0.40 / -3.54% | 10.60 | 12.20 | 10.60 | 10.90 | 10.82 | 2.58 | 23,500 |   |  
            | 11/15/2010 | -0.30 / -2.59% | 11.10 | 12.60 | 11.10 | 11.30 | 11.53 | 2.67 | 33,300 |   |  			
            | 11/12/2010 | -0.80 / -6.45% | 12.00 | 13.30 | 11.60 | 11.60 | 11.66 | 2.74 | 38,300 |   |  
            | 11/11/2010 | 0.00 / 0.00% | 12.60 | 14.20 | 12.40 | 12.40 | 12.90 | 2.93 | 12,500 |   |  			
            | 11/10/2010 | -0.60 / -4.62% | 12.90 | 14.40 | 12.40 | 12.40 | 12.65 | 2.93 | 17,600 |   |  
            | 11/9/2010 | -0.40 / -2.99% | 13.50 | 15.00 | 13.00 | 13.00 | 13.63 | 3.07 | 13,800 |   |  			
            | 11/8/2010 | -0.40 / -2.90% | 13.90 | 15.40 | 13.40 | 13.40 | 13.49 | 3.17 | 3,700 |   |  
            | 11/5/2010 | +0.30 / +2.22% | 13.90 | 15.60 | 13.80 | 13.80 | 13.91 | 3.26 | 29,000 |   |  			
            | 11/4/2010 | +0.60 / +4.65% | 13.40 | 15.00 | 13.40 | 13.50 | 13.43 | 3.19 | 30,600 |   |  
            | 11/3/2010 | -0.60 / -4.44% | 13.10 | 15.10 | 12.90 | 12.90 | 13.12 | 3.05 | 18,000 |   |  			
            | 11/2/2010 | -0.30 / -2.17% | 13.50 | 15.10 | 13.50 | 13.50 | 13.90 | 3.19 | 17,000 |   |  
            | 11/1/2010 | -0.20 / -1.43% | 13.70 | 15.30 | 13.70 | 13.80 | 14.13 | 3.26 | 19,400 |   |  			
            | 10/29/2010 | +0.10 / +0.72% | 14.00 | 15.90 | 14.00 | 14.00 | 14.05 | 3.31 | 12,200 |   |  
            | 10/28/2010 | -0.20 / -1.42% | 14.30 | 15.90 | 13.90 | 13.90 | 14.19 | 3.29 | 7,800 |   |  			
            | 10/27/2010 | -0.40 / -2.76% | 14.50 | 16.40 | 14.10 | 14.10 | 14.31 | 3.33 | 21,700 |   |  
            | 10/26/2010 | +0.50 / +3.57% | 14.40 | 16.10 | 14.40 | 14.50 | 14.42 | 3.43 | 38,600 |   |  |  |  
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