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                    Closing price on 9/17/2009
                 |  |  
    
        |           
                
                    | Open | 16.00 |  
                    | High | 16.10 |  
                    | Low | 15.50 |  
                    | Volume | 144,030 |  
                    | Split-adjusted Price | 16.00 |  
                
             | 
 |  DDM Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/17/2009 | -0.20 / -1.23% | 16.00 | 16.10 | 15.50 | 16.00 | 15.60 | 16.00 | 144,030 |   |  
            | 9/16/2009 | +0.30 / +1.89% | 16.30 | 16.30 | 15.90 | 16.20 | 16.00 | 16.20 | 289,220 |   |  			
            | 9/15/2009 | 0.00 / 0.00% | 15.90 | 16.00 | 15.90 | 15.90 | 15.93 | 15.90 | 161,020 |   |  
            | 9/14/2009 | 0.00 / 0.00% | 15.80 | 16.10 | 15.80 | 15.90 | 15.90 | 15.90 | 189,500 |   |  			
            | 9/11/2009 | -0.10 / -0.62% | 16.10 | 16.30 | 15.70 | 16.00 | 16.00 | 16.00 | 374,670 |   |  
            | 9/10/2009 | +0.40 / +2.55% | 16.40 | 16.40 | 15.20 | 16.10 | 16.00 | 16.10 | 549,470 |   |  			
            | 9/9/2009 | +0.70 / +4.67% | 15.70 | 15.70 | 15.70 | 15.70 | 15.70 | 15.70 | 451,560 |   |  
            | 9/8/2009 | +0.70 / +4.90% | 15.00 | 15.00 | 15.00 | 15.00 | 15.00 | 15.00 | 189,360 |   |  			
            | 9/7/2009 | 0.00 / 0.00% | 14.30 | 14.30 | 13.70 | 14.30 | 14.15 | 14.30 | 476,430 |   |  
            | 9/4/2009 | +0.60 / +4.58% | 13.30 | 13.70 | 13.20 | 13.70 | 13.70 | 13.70 | 256,140 |   |  			
            | 9/3/2009 | 0.00 / 0.00% | 13.00 | 13.40 | 12.90 | 13.10 | 13.10 | 13.10 | 68,410 |   |  
            | 9/1/2009 | -0.10 / -0.74% | 13.40 | 13.40 | 13.20 | 13.40 | 13.40 | 13.40 | 88,570 |   |  			
            | 8/31/2009 | 0.00 / 0.00% | 13.80 | 13.80 | 13.30 | 13.50 | 13.40 | 13.50 | 58,320 |   |  
            | 8/28/2009 | 0.00 / 0.00% | 13.50 | 13.50 | 13.40 | 13.50 | 13.50 | 13.50 | 132,630 |   |  			
            | 8/27/2009 | +0.30 / +2.27% | 13.20 | 13.70 | 12.90 | 13.50 | 13.50 | 13.50 | 98,240 |   |  
            | 8/26/2009 | -0.20 / -1.49% | 13.40 | 13.40 | 13.00 | 13.20 | 13.25 | 13.20 | 54,890 |   |  			
            | 8/25/2009 | -0.20 / -1.47% | 13.60 | 13.60 | 13.00 | 13.40 | 13.20 | 13.40 | 192,050 |   |  
            | 8/24/2009 | 0.00 / 0.00% | 13.00 | 13.60 | 12.90 | 13.60 | 13.40 | 13.60 | 187,400 |   |  			
            | 8/21/2009 | +0.60 / +4.84% | 12.50 | 13.00 | 12.50 | 13.00 | 13.00 | 13.00 | 227,540 |   |  
            | 8/20/2009 | 0.00 / 0.00% | 12.40 | 12.40 | 12.20 | 12.40 | 12.35 | 12.40 | 94,860 |   |  			
            | 8/19/2009 | 0.00 / 0.00% | 12.00 | 12.50 | 12.00 | 12.40 | 12.40 | 12.40 | 225,970 |   |  
            | 8/18/2009 | -0.10 / -0.80% | 12.00 | 12.60 | 12.00 | 12.40 | 12.40 | 12.40 | 76,600 |   |  			
            | 8/17/2009 | 0.00 / 0.00% | 12.40 | 12.70 | 12.10 | 12.50 | 12.40 | 12.50 | 80,840 |   |  
            | 8/14/2009 | -0.20 / -1.63% | 11.90 | 12.30 | 11.90 | 12.10 | 12.10 | 12.10 | 131,410 |   |  			
            | 8/13/2009 | -0.20 / -1.60% | 11.90 | 12.50 | 11.90 | 12.30 | 12.10 | 12.30 | 220,010 |   |  
            | 8/12/2009 | -0.20 / -1.57% | 12.70 | 13.20 | 12.40 | 12.50 | 12.70 | 12.50 | 172,670 |   |  			
            | 8/11/2009 | +0.60 / +4.96% | 12.70 | 12.70 | 12.50 | 12.70 | 12.50 | 12.70 | 162,080 |   |  
            | 8/10/2009 | 0.00 / 0.00% | 12.10 | 12.10 | 12.10 | 12.10 | 12.10 | 12.10 | 48,760 |   |  			
            | 8/7/2009 | +0.50 / +4.50% | 11.50 | 11.60 | 11.20 | 11.60 | 11.60 | 11.60 | 120,810 |   |  
            | 8/6/2009 | +0.50 / +4.72% | 10.80 | 11.10 | 10.80 | 11.10 | 10.95 | 11.10 | 146,280 |   |  |