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            | 
                    Closing price on 3/21/2011
                 |  |  
    
        |           
                
                    | Open | 15.30 |  
                    | High | 15.90 |  
                    | Low | 15.30 |  
                    | Volume | 3,200 |  
                    | Split-adjusted Price | 8.73 |  
                
             | 
 |  DPC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/21/2011 | -0.60 / -3.70% | 15.30 | 15.90 | 15.30 | 15.60 | 15.60 | 8.73 | 3,200 |   |  
            | 3/18/2011 | +0.10 / +0.62% | 15.90 | 16.30 | 15.50 | 16.20 | 16.20 | 9.06 | 4,000 |   |  			
            | 3/17/2011 | +0.20 / +1.26% | 15.10 | 16.40 | 15.00 | 16.10 | 16.10 | 9.01 | 2,500 |   |  
            | 3/16/2011 | +0.30 / +1.92% | 15.90 | 15.90 | 15.90 | 15.90 | 15.90 | 8.90 | 0 |   |  			
            | 3/15/2011 | -0.20 / -1.27% | 16.50 | 16.70 | 15.60 | 15.60 | 15.60 | 8.73 | 1,300 |   |  
            | 3/14/2011 | -0.90 / -5.39% | 15.80 | 15.80 | 15.80 | 15.80 | 15.80 | 8.84 | 1,700 |   |  			
            | 3/11/2011 | -0.60 / -3.47% | 16.50 | 17.20 | 16.50 | 16.70 | 16.70 | 9.34 | 2,000 |   |  
            | 3/10/2011 | +0.40 / +2.37% | 17.30 | 17.30 | 17.30 | 17.30 | 17.30 | 9.68 | 300 |   |  			
            | 3/9/2011 | +0.80 / +4.97% | 16.90 | 16.90 | 16.90 | 16.90 | 16.90 | 9.45 | 100 |   |  
            | 3/8/2011 | -1.20 / -6.94% | 16.50 | 16.50 | 16.10 | 16.10 | 16.10 | 9.01 | 1,600 |   |  			
            | 3/7/2011 | 0.00 / 0.00% | 17.30 | 17.30 | 17.30 | 17.30 | 17.30 | 9.68 | 0 |   |  
            | 3/4/2011 | 0.00 / 0.00% | 17.30 | 17.30 | 17.30 | 17.30 | 17.30 | 9.68 | 0 |   |  			
            | 3/3/2011 | +0.80 / +4.85% | 17.30 | 17.30 | 17.30 | 17.30 | 17.30 | 9.68 | 100 |   |  
            | 3/2/2011 | -0.70 / -4.07% | 16.60 | 17.90 | 16.50 | 16.50 | 16.50 | 9.23 | 2,200 |   |  			
            | 3/1/2011 | +0.10 / +0.58% | 17.20 | 17.20 | 17.20 | 17.20 | 17.20 | 9.62 | 100 |   |  
            | 2/28/2011 | +1.10 / +6.88% | 17.00 | 17.10 | 15.80 | 17.10 | 17.10 | 9.57 | 1,500 |   |  			
            | 2/25/2011 | +1.00 / +6.67% | 16.00 | 16.00 | 16.00 | 16.00 | 16.00 | 8.95 | 100 |   |  
            | 2/24/2011 | -0.50 / -3.23% | 15.00 | 15.00 | 14.90 | 15.00 | 15.00 | 8.39 | 13,000 |   |  			
            | 2/23/2011 | +0.40 / +2.65% | 15.50 | 15.50 | 15.50 | 15.50 | 15.50 | 8.67 | 0 |   |  
            | 2/22/2011 | -1.40 / -8.48% | 15.10 | 15.80 | 15.10 | 15.10 | 15.10 | 8.45 | 5,400 |   |  			
            | 2/21/2011 | +0.40 / +2.48% | 15.70 | 16.50 | 15.50 | 16.50 | 16.50 | 9.23 | 4,300 |   |  
            | 2/18/2011 | -0.90 / -5.29% | 16.70 | 16.70 | 16.10 | 16.10 | 16.10 | 9.01 | 3,200 |   |  			
            | 2/17/2011 | 0.00 / 0.00% | 17.00 | 17.00 | 17.00 | 17.00 | 17.00 | 9.51 | 0 |   |  
            | 2/16/2011 | -0.40 / -2.30% | 17.10 | 17.10 | 17.00 | 17.00 | 17.00 | 9.51 | 2,700 |   |  			
            | 2/15/2011 | +0.10 / +0.58% | 17.40 | 17.40 | 17.40 | 17.40 | 17.40 | 9.73 | 0 |   |  
            | 2/14/2011 | -0.10 / -0.57% | 17.40 | 17.40 | 17.30 | 17.30 | 17.30 | 9.68 | 1,000 |   |  			
            | 2/11/2011 | 0.00 / 0.00% | 17.40 | 17.40 | 17.40 | 17.40 | 17.40 | 9.73 | 800 |   |  
            | 2/10/2011 | 0.00 / 0.00% | 17.40 | 17.40 | 17.40 | 17.40 | 17.40 | 9.73 | 200 |   |  			
            | 2/9/2011 | +0.10 / +0.58% | 17.40 | 17.40 | 17.40 | 17.40 | 17.40 | 9.73 | 100 |   |  
            | 2/8/2011 | -0.70 / -3.89% | 17.30 | 17.30 | 17.30 | 17.30 | 17.30 | 9.68 | 700 |   |  |