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                    Closing price on 9/16/2010
                 |  |  
    
        |           
                
                    | Open | 8.40 |  
                    | High | 8.80 |  
                    | Low | 8.40 |  
                    | Volume | 36,280 |  
                    | Split-adjusted Price | 8.80 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/16/2010 | +0.30 / +3.53% | 8.40 | 8.80 | 8.40 | 8.80 | 8.60 | 8.80 | 36,280 |   |  
            | 9/15/2010 | 0.00 / 0.00% | 8.60 | 8.70 | 8.40 | 8.50 | 8.55 | 8.50 | 55,910 |   |  			
            | 9/14/2010 | -0.10 / -1.16% | 8.80 | 8.80 | 8.50 | 8.50 | 8.50 | 8.50 | 7,110 |   |  
            | 9/13/2010 | 0.00 / 0.00% | 8.80 | 8.80 | 8.40 | 8.60 | 8.50 | 8.60 | 31,870 |   |  			
            | 9/10/2010 | -0.40 / -4.44% | 9.00 | 9.00 | 8.60 | 8.60 | 8.60 | 8.60 | 15,660 |   |  
            | 9/9/2010 | +0.10 / +1.12% | 8.90 | 9.10 | 8.90 | 9.00 | 8.98 | 9.00 | 29,290 |   |  			
            | 9/8/2010 | 0.00 / 0.00% | 8.60 | 8.90 | 8.60 | 8.90 | 8.75 | 8.90 | 39,650 |   |  
            | 9/7/2010 | -0.20 / -2.20% | 8.80 | 9.30 | 8.80 | 8.90 | 8.90 | 8.90 | 19,100 |   |  			
            | 9/6/2010 | 0.00 / 0.00% | 9.00 | 9.10 | 9.00 | 9.10 | 9.05 | 9.10 | 52,830 |   |  
            | 9/1/2010 | -0.30 / -3.33% | 8.90 | 8.90 | 8.60 | 8.70 | 8.70 | 8.70 | 36,060 |   |  			
            | 8/31/2010 | +0.40 / +4.65% | 8.90 | 9.00 | 8.70 | 9.00 | 8.70 | 9.00 | 64,560 |   |  
            | 8/30/2010 | 0.00 / 0.00% | 8.60 | 8.60 | 8.60 | 8.60 | 8.60 | 8.60 | 13,390 |   |  			
            | 8/27/2010 | -0.30 / -3.53% | 8.30 | 8.40 | 8.10 | 8.20 | 8.20 | 8.20 | 26,890 |   |  
            | 8/26/2010 | 0.00 / 0.00% | 8.50 | 8.50 | 8.30 | 8.50 | 8.45 | 8.50 | 21,480 |   |  			
            | 8/25/2010 | -0.40 / -4.49% | 8.60 | 8.60 | 8.50 | 8.50 | 8.50 | 8.50 | 20,540 |   |  
            | 8/24/2010 | -0.40 / -4.30% | 9.00 | 9.00 | 8.90 | 8.90 | 8.95 | 8.90 | 18,890 |   |  			
            | 8/23/2010 | 0.00 / 0.00% | 9.40 | 9.40 | 9.30 | 9.30 | 9.35 | 9.30 | 3,300 |   |  
            | 8/20/2010 | 0.00 / 0.00% | 9.40 | 9.40 | 9.10 | 9.30 | 9.30 | 9.30 | 5,430 |   |  			
            | 8/19/2010 | -0.10 / -1.06% | 9.30 | 9.30 | 9.10 | 9.30 | 9.30 | 9.30 | 6,840 |   |  
            | 8/18/2010 | +0.10 / +1.08% | 9.30 | 9.40 | 9.10 | 9.40 | 9.30 | 9.40 | 9,320 |   |  			
            | 8/17/2010 | -0.30 / -3.13% | 9.70 | 9.70 | 9.30 | 9.30 | 9.40 | 9.30 | 15,350 |   |  
            | 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 |   |  |