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                    Closing price on 6/24/2010
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                    | Open | 11.80 |  
                    | High | 12.00 |  
                    | Low | 11.60 |  
                    | Volume | 40,300 |  
                    | Split-adjusted Price | 11.60 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/24/2010 | -0.20 / -1.69% | 11.80 | 12.00 | 11.60 | 11.60 | 11.75 | 11.60 | 40,300 |   |  
            | 6/23/2010 | 0.00 / 0.00% | 11.50 | 12.00 | 11.50 | 11.80 | 11.60 | 11.80 | 35,150 |   |  			
            | 6/22/2010 | +0.10 / +0.85% | 12.20 | 12.20 | 11.80 | 11.80 | 11.80 | 11.80 | 322,720 |   |  
            | 6/21/2010 | 0.00 / 0.00% | 11.40 | 11.70 | 11.40 | 11.70 | 11.70 | 11.70 | 118,220 |   |  			
            | 6/18/2010 | 0.00 / 0.00% | 11.20 | 11.20 | 11.20 | 11.20 | 11.20 | 11.20 | 26,270 |   |  
            | 6/17/2010 | 0.00 / 0.00% | 11.40 | 11.40 | 11.20 | 11.20 | 11.20 | 11.20 | 38,040 |   |  			
            | 6/16/2010 | 0.00 / 0.00% | 11.20 | 11.30 | 11.10 | 11.20 | 11.20 | 11.20 | 40,290 |   |  
            | 6/15/2010 | +0.10 / +0.90% | 11.10 | 11.20 | 11.00 | 11.20 | 11.20 | 11.20 | 88,170 |   |  			
            | 6/14/2010 | 0.00 / 0.00% | 11.20 | 11.20 | 11.10 | 11.10 | 11.20 | 11.10 | 39,550 |   |  
            | 6/11/2010 | +0.10 / +0.90% | 11.30 | 11.30 | 11.10 | 11.20 | 11.20 | 11.20 | 27,800 |   |  			
            | 6/10/2010 | +0.10 / +0.91% | 10.80 | 11.10 | 10.80 | 11.10 | 10.95 | 11.10 | 31,450 |   |  
            | 6/9/2010 | +0.30 / +2.80% | 10.70 | 11.10 | 10.70 | 11.00 | 11.10 | 11.00 | 42,440 |   |  			
            | 6/8/2010 | 0.00 / 0.00% | 10.70 | 10.80 | 10.70 | 10.70 | 10.73 | 10.70 | 20,580 |   |  
            | 6/7/2010 | 0.00 / 0.00% | 11.00 | 11.00 | 10.70 | 10.70 | 10.70 | 10.70 | 36,160 |   |  			
            | 6/4/2010 | -0.20 / -1.77% | 11.40 | 11.40 | 11.10 | 11.10 | 11.10 | 11.10 | 28,320 |   |  
            | 6/3/2010 | 0.00 / 0.00% | 11.60 | 11.60 | 11.30 | 11.30 | 11.45 | 11.30 | 28,840 |   |  			
            | 6/2/2010 | -0.10 / -0.88% | 11.30 | 11.30 | 11.20 | 11.30 | 11.30 | 11.30 | 9,460 |   |  
            | 6/1/2010 | +0.10 / +0.88% | 11.00 | 11.40 | 11.00 | 11.40 | 11.30 | 11.40 | 16,430 |   |  			
            | 5/31/2010 | 0.00 / 0.00% | 11.60 | 11.60 | 11.20 | 11.30 | 11.40 | 11.30 | 16,810 |   |  
            | 5/28/2010 | +0.50 / +4.55% | 11.50 | 11.50 | 11.40 | 11.50 | 11.50 | 11.50 | 78,800 |   |  			
            | 5/27/2010 | -0.20 / -1.79% | 11.20 | 11.20 | 11.00 | 11.00 | 11.10 | 11.00 | 31,940 |   |  
            | 5/26/2010 | +0.50 / +4.67% | 11.00 | 11.20 | 11.00 | 11.20 | 11.00 | 11.20 | 59,490 |   |  			
            | 5/25/2010 | -0.10 / -0.93% | 10.90 | 11.00 | 10.70 | 10.70 | 10.83 | 10.70 | 71,820 |   |  
            | 5/24/2010 | 0.00 / 0.00% | 11.00 | 11.00 | 10.60 | 10.80 | 10.70 | 10.80 | 23,010 |   |  			
            | 5/21/2010 | -0.50 / -4.46% | 10.70 | 11.00 | 10.70 | 10.70 | 10.70 | 10.70 | 140,550 |   |  
            | 5/20/2010 | 0.00 / 0.00% | 10.70 | 11.20 | 10.70 | 11.20 | 10.70 | 11.20 | 118,790 |   |  			
            | 5/19/2010 | -0.50 / -4.27% | 11.70 | 11.80 | 11.20 | 11.20 | 11.20 | 11.20 | 91,810 |   |  
            | 5/18/2010 | -0.30 / -2.50% | 11.80 | 12.00 | 11.70 | 11.70 | 11.80 | 11.70 | 82,900 |   |  			
            | 5/17/2010 | 0.00 / 0.00% | 12.50 | 12.50 | 12.00 | 12.00 | 12.25 | 12.00 | 92,020 |   |  
            | 5/14/2010 | +0.10 / +0.81% | 12.40 | 12.80 | 12.10 | 12.50 | 12.50 | 12.50 | 35,480 |   |  |