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                    Closing price on 8/16/2010
                 |  |  
    
        |           
                
                    | Open | 9.20 |  
                    | High | 9.60 |  
                    | Low | 9.20 |  
                    | Volume | 20,110 |  
                    | Split-adjusted Price | 9.60 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/16/2010 | 0.00 / 0.00% | 9.20 | 9.60 | 9.20 | 9.60 | 9.30 | 9.60 | 20,110 |   |  
            | 8/13/2010 | 0.00 / 0.00% | 9.20 | 9.50 | 9.20 | 9.20 | 9.20 | 9.20 | 15,470 |   |  			
            | 8/12/2010 | -0.40 / -4.17% | 9.70 | 9.70 | 9.20 | 9.20 | 9.20 | 9.20 | 45,650 |   |  
            | 8/11/2010 | 0.00 / 0.00% | 9.80 | 9.90 | 9.50 | 9.60 | 9.70 | 9.60 | 33,600 |   |  			
            | 8/10/2010 | -0.20 / -2.04% | 9.60 | 9.70 | 9.40 | 9.60 | 9.60 | 9.60 | 35,410 |   |  
            | 8/9/2010 | 0.00 / 0.00% | 10.00 | 10.00 | 9.80 | 9.80 | 9.90 | 9.80 | 26,210 |   |  			
            | 8/6/2010 | -0.30 / -2.91% | 10.30 | 10.40 | 10.00 | 10.00 | 10.00 | 10.00 | 70,210 |   |  
            | 8/5/2010 | -0.20 / -1.90% | 10.60 | 10.70 | 10.30 | 10.30 | 10.48 | 10.30 | 34,820 |   |  			
            | 8/4/2010 | -0.10 / -0.94% | 10.60 | 10.60 | 10.50 | 10.50 | 10.55 | 10.50 | 21,910 |   |  
            | 8/3/2010 | -0.20 / -1.85% | 10.90 | 11.00 | 10.60 | 10.60 | 10.78 | 10.60 | 36,610 |   |  			
            | 8/2/2010 | 0.00 / 0.00% | 10.70 | 10.90 | 10.70 | 10.80 | 10.78 | 10.80 | 47,860 |   |  
            | 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 |   |  |