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                    Closing price on 11/22/2010
                 |  |  
    
        |           
                
                    | Open | 5.70 |  
                    | High | 5.70 |  
                    | Low | 5.60 |  
                    | Volume | 26,290 |  
                    | Split-adjusted Price | 5.60 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/22/2010 | 0.00 / 0.00% | 5.70 | 5.70 | 5.60 | 5.60 | 5.70 | 5.60 | 26,290 |   |  
            | 11/19/2010 | -0.10 / -1.69% | 5.80 | 5.90 | 5.80 | 5.80 | 5.80 | 5.80 | 17,370 |   |  			
            | 11/18/2010 | +0.10 / +1.72% | 5.80 | 6.00 | 5.80 | 5.90 | 5.80 | 5.90 | 24,680 |   |  
            | 11/17/2010 | +0.20 / +3.57% | 5.80 | 5.80 | 5.50 | 5.80 | 5.73 | 5.80 | 38,620 |   |  			
            | 11/16/2010 | -0.20 / -3.45% | 5.70 | 5.70 | 5.60 | 5.60 | 5.65 | 5.60 | 12,430 |   |  
            | 11/15/2010 | 0.00 / 0.00% | 5.80 | 6.00 | 5.80 | 5.80 | 5.85 | 5.80 | 3,620 |   |  			
            | 11/12/2010 | -0.30 / -4.76% | 6.40 | 6.40 | 6.00 | 6.00 | 6.00 | 6.00 | 9,480 |   |  
            | 11/11/2010 | -0.10 / -1.56% | 6.20 | 6.30 | 6.10 | 6.30 | 6.23 | 6.30 | 17,630 |   |  			
            | 11/10/2010 | -0.10 / -1.54% | 6.50 | 6.50 | 6.20 | 6.40 | 6.30 | 6.40 | 14,110 |   |  
            | 11/9/2010 | -0.10 / -1.52% | 6.40 | 6.60 | 6.30 | 6.50 | 6.40 | 6.50 | 21,240 |   |  			
            | 11/8/2010 | 0.00 / 0.00% | 6.30 | 6.60 | 6.30 | 6.60 | 6.50 | 6.60 | 4,480 |   |  
            | 11/5/2010 | +0.20 / +3.13% | 6.40 | 6.60 | 6.40 | 6.60 | 6.60 | 6.60 | 6,710 |   |  			
            | 11/4/2010 | -0.20 / -3.03% | 6.60 | 6.80 | 6.40 | 6.40 | 6.60 | 6.40 | 32,370 |   |  
            | 11/3/2010 | -0.10 / -1.49% | 6.80 | 6.80 | 6.40 | 6.60 | 6.40 | 6.60 | 36,570 |   |  			
            | 11/2/2010 | 0.00 / 0.00% | 6.50 | 6.70 | 6.50 | 6.70 | 6.60 | 6.70 | 16,320 |   |  
            | 11/1/2010 | 0.00 / 0.00% | 6.50 | 6.80 | 6.40 | 6.70 | 6.70 | 6.70 | 27,860 |   |  			
            | 10/29/2010 | -0.10 / -1.52% | 6.40 | 6.70 | 6.40 | 6.50 | 6.50 | 6.50 | 10,780 |   |  
            | 10/28/2010 | 0.00 / 0.00% | 6.60 | 6.60 | 6.50 | 6.60 | 6.50 | 6.60 | 3,650 |   |  			
            | 10/27/2010 | -0.30 / -4.35% | 7.00 | 7.10 | 6.60 | 6.60 | 6.60 | 6.60 | 19,140 |   |  
            | 10/26/2010 | +0.20 / +2.99% | 6.80 | 7.00 | 6.80 | 6.90 | 6.88 | 6.90 | 19,700 |   |  			
            | 10/25/2010 | 0.00 / 0.00% | 6.20 | 6.70 | 6.20 | 6.70 | 6.45 | 6.70 | 14,220 |   |  
            | 10/22/2010 | -0.20 / -3.03% | 6.60 | 6.60 | 6.40 | 6.40 | 6.40 | 6.40 | 9,000 |   |  			
            | 10/21/2010 | -0.30 / -4.35% | 6.60 | 6.80 | 6.60 | 6.60 | 6.65 | 6.60 | 42,430 |   |  
            | 10/20/2010 | -0.30 / -4.17% | 6.90 | 6.90 | 6.90 | 6.90 | 6.90 | 6.90 | 21,280 |   |  			
            | 10/19/2010 | 0.00 / 0.00% | 7.10 | 7.30 | 7.00 | 7.20 | 7.15 | 7.20 | 34,670 |   |  
            | 10/18/2010 | 0.00 / 0.00% | 7.20 | 7.30 | 7.20 | 7.20 | 7.20 | 7.20 | 15,800 |   |  			
            | 10/15/2010 | -0.10 / -1.33% | 7.40 | 7.50 | 7.30 | 7.40 | 7.40 | 7.40 | 15,090 |   |  
            | 10/14/2010 | +0.10 / +1.35% | 7.30 | 7.60 | 7.30 | 7.50 | 7.40 | 7.50 | 25,110 |   |  			
            | 10/13/2010 | -0.10 / -1.33% | 7.50 | 7.50 | 7.30 | 7.40 | 7.50 | 7.40 | 17,810 |   |  
            | 10/12/2010 | -0.10 / -1.32% | 7.60 | 7.70 | 7.50 | 7.50 | 7.58 | 7.50 | 59,510 |   |  |