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                    Closing price on 10/8/2010
                 |  |  
    
        |           
                
                    | Open | 7.40 |  
                    | High | 7.80 |  
                    | Low | 7.40 |  
                    | Volume | 71,090 |  
                    | Split-adjusted Price | 7.70 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/8/2010 | +0.20 / +2.67% | 7.40 | 7.80 | 7.40 | 7.70 | 7.70 | 7.70 | 71,090 |   |  
            | 10/7/2010 | -0.10 / -1.32% | 7.50 | 7.70 | 7.50 | 7.50 | 7.70 | 7.50 | 75,650 |   |  			
            | 10/6/2010 | -0.40 / -5.00% | 7.70 | 7.90 | 7.60 | 7.60 | 7.70 | 7.60 | 71,790 |   |  
            | 10/5/2010 | 0.00 / 0.00% | 7.80 | 8.30 | 7.60 | 8.00 | 7.60 | 8.00 | 29,740 |   |  			
            | 10/4/2010 | 0.00 / 0.00% | 8.00 | 8.00 | 7.80 | 8.00 | 8.00 | 8.00 | 13,320 |   |  
            | 10/1/2010 | +0.10 / +1.25% | 7.80 | 8.30 | 7.80 | 8.10 | 8.10 | 8.10 | 2,040 |   |  			
            | 9/30/2010 | -0.20 / -2.44% | 8.20 | 8.20 | 8.00 | 8.00 | 8.10 | 8.00 | 16,530 |   |  
            | 9/29/2010 | -0.20 / -2.38% | 8.40 | 8.40 | 8.20 | 8.20 | 8.30 | 8.20 | 14,840 |   |  			
            | 9/28/2010 | 0.00 / 0.00% | 8.30 | 8.50 | 8.30 | 8.40 | 8.38 | 8.40 | 10,300 |   |  
            | 9/27/2010 | 0.00 / 0.00% | 8.60 | 8.70 | 8.40 | 8.40 | 8.40 | 8.40 | 9,920 |   |  			
            | 9/24/2010 | +0.10 / +1.18% | 8.60 | 8.60 | 8.50 | 8.60 | 8.60 | 8.60 | 11,540 |   |  
            | 9/23/2010 | -0.30 / -3.41% | 8.60 | 8.60 | 8.40 | 8.50 | 8.60 | 8.50 | 30,110 |   |  			
            | 9/22/2010 | +0.20 / +2.33% | 8.90 | 8.90 | 8.50 | 8.80 | 8.50 | 8.80 | 3,890 |   |  
            | 9/21/2010 | -0.10 / -1.15% | 8.50 | 8.60 | 8.50 | 8.60 | 8.55 | 8.60 | 17,120 |   |  			
            | 9/20/2010 | 0.00 / 0.00% | 9.00 | 9.10 | 8.70 | 8.70 | 8.88 | 8.70 | 24,510 |   |  
            | 9/17/2010 | +0.20 / +2.27% | 8.80 | 9.10 | 8.70 | 9.00 | 9.00 | 9.00 | 59,740 |   |  			
            | 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 |   |  |