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                    Closing price on 7/30/2010
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                    | Open | 10.80 |  
                    | High | 10.90 |  
                    | Low | 10.70 |  
                    | Volume | 36,230 |  
                    | Split-adjusted Price | 10.70 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/30/2010 | +0.10 / +0.94% | 10.80 | 10.90 | 10.70 | 10.70 | 10.70 | 10.70 | 36,230 |   |  
            | 7/29/2010 | -0.20 / -1.85% | 10.60 | 11.10 | 10.50 | 10.60 | 10.70 | 10.60 | 42,400 |   |  			
            | 7/28/2010 | -0.50 / -4.42% | 10.90 | 11.00 | 10.80 | 10.80 | 10.88 | 10.80 | 253,690 |   |  
            | 7/27/2010 | -0.20 / -1.74% | 11.50 | 11.60 | 11.30 | 11.30 | 11.43 | 11.30 | 126,670 |   |  			
            | 7/26/2010 | 0.00 / 0.00% | 11.80 | 11.80 | 11.50 | 11.50 | 11.65 | 11.50 | 43,820 |   |  
            | 7/23/2010 | -0.20 / -1.67% | 12.00 | 12.30 | 11.80 | 11.80 | 11.80 | 11.80 | 59,480 |   |  			
            | 7/22/2010 | -0.30 / -2.44% | 12.00 | 12.20 | 11.80 | 12.00 | 11.80 | 12.00 | 60,590 |   |  
            | 7/21/2010 | +0.50 / +4.24% | 11.90 | 12.30 | 11.90 | 12.30 | 12.00 | 12.30 | 397,410 |   |  			
            | 7/20/2010 | 0.00 / 0.00% | 11.70 | 11.80 | 11.60 | 11.80 | 11.73 | 11.80 | 80,950 |   |  
            | 7/19/2010 | 0.00 / 0.00% | 11.70 | 11.80 | 11.40 | 11.80 | 11.80 | 11.80 | 50,290 |   |  			
            | 7/16/2010 | 0.00 / 0.00% | 11.70 | 11.80 | 11.60 | 11.70 | 11.70 | 11.70 | 81,680 |   |  
            | 7/15/2010 | +0.10 / +0.86% | 11.60 | 11.90 | 11.60 | 11.70 | 11.70 | 11.70 | 67,530 |   |  			
            | 7/14/2010 | 0.00 / 0.00% | 12.00 | 12.00 | 11.60 | 11.60 | 11.70 | 11.60 | 101,950 |   |  
            | 7/13/2010 | +0.20 / +1.75% | 11.40 | 11.70 | 11.40 | 11.60 | 11.60 | 11.60 | 77,740 |   |  			
            | 7/12/2010 | 0.00 / 0.00% | 11.20 | 11.40 | 11.20 | 11.40 | 11.30 | 11.40 | 22,580 |   |  
            | 7/9/2010 | -0.10 / -0.88% | 11.30 | 11.40 | 11.20 | 11.20 | 11.20 | 11.20 | 23,100 |   |  			
            | 7/8/2010 | 0.00 / 0.00% | 11.50 | 11.50 | 11.30 | 11.30 | 11.40 | 11.30 | 21,290 |   |  
            | 7/7/2010 | -0.10 / -0.88% | 11.60 | 11.60 | 11.10 | 11.30 | 11.30 | 11.30 | 51,830 |   |  			
            | 7/6/2010 | -0.40 / -3.39% | 11.50 | 11.70 | 11.40 | 11.40 | 11.50 | 11.40 | 72,370 |   |  
            | 7/5/2010 | 0.00 / 0.00% | 11.70 | 11.80 | 11.70 | 11.80 | 11.75 | 11.80 | 83,550 |   |  			
            | 7/2/2010 | +0.30 / +2.63% | 11.50 | 11.70 | 11.40 | 11.70 | 11.70 | 11.70 | 34,750 |   |  
            | 7/1/2010 | 0.00 / 0.00% | 11.70 | 11.70 | 11.30 | 11.40 | 11.70 | 11.40 | 56,400 |   |  			
            | 6/30/2010 | -0.20 / -1.72% | 11.50 | 11.50 | 11.30 | 11.40 | 11.40 | 11.40 | 37,300 |   |  
            | 6/29/2010 | -0.20 / -1.69% | 12.20 | 12.20 | 11.60 | 11.60 | 11.90 | 11.60 | 95,840 |   |  			
            | 6/28/2010 | 0.00 / 0.00% | 11.30 | 11.80 | 11.30 | 11.80 | 11.60 | 11.80 | 209,960 |   |  
            | 6/25/2010 | -0.30 / -2.59% | 11.40 | 11.60 | 11.30 | 11.30 | 11.30 | 11.30 | 62,510 |   |  			
            | 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 |   |  |