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                    Closing price on 7/15/2009
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                    | Open | 11.60 |  
                    | High | 11.70 |  
                    | Low | 11.40 |  
                    | Volume | 11,000 |  
                    | Split-adjusted Price | 11.70 |  
                
             | 
 |  SDD Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/15/2009 | +0.40 / +3.54% | 11.60 | 11.70 | 11.40 | 11.70 | 11.56 | 11.70 | 11,000 |   |  
            | 7/14/2009 | -0.10 / -0.88% | 11.50 | 11.50 | 11.20 | 11.30 | 11.38 | 11.30 | 23,300 |   |  			
            | 7/13/2009 | -0.50 / -4.20% | 11.40 | 11.40 | 11.20 | 11.40 | 11.31 | 11.40 | 11,000 |   |  
            | 7/10/2009 | +0.30 / +2.59% | 11.80 | 12.00 | 11.60 | 11.90 | 11.82 | 11.90 | 72,500 |   |  			
            | 7/9/2009 | -0.20 / -1.69% | 10.90 | 12.10 | 10.90 | 11.60 | 11.62 | 11.60 | 46,300 |   |  
            | 7/8/2009 | +0.10 / +0.85% | 11.80 | 11.80 | 11.50 | 11.80 | 11.74 | 11.80 | 3,200 |   |  			
            | 7/7/2009 | -0.70 / -5.65% | 12.60 | 12.60 | 11.50 | 11.70 | 11.89 | 11.70 | 18,500 |   |  
            | 7/6/2009 | +0.50 / +4.20% | 12.50 | 12.50 | 11.90 | 12.40 | 12.29 | 12.40 | 45,400 |   |  			
            | 7/3/2009 | +0.10 / +0.85% | 11.00 | 12.00 | 11.00 | 11.90 | 11.86 | 11.90 | 17,800 |   |  
            | 7/2/2009 | +0.50 / +4.42% | 11.50 | 11.80 | 11.30 | 11.80 | 11.66 | 11.80 | 23,200 |   |  			
            | 7/1/2009 | -0.50 / -4.24% | 11.50 | 11.50 | 11.30 | 11.30 | 11.34 | 11.30 | 39,400 |   |  
            | 6/30/2009 | -0.20 / -1.67% | 13.00 | 13.00 | 11.50 | 11.80 | 12.07 | 11.80 | 16,700 |   |  			
            | 6/29/2009 | -0.70 / -5.51% | 12.00 | 12.70 | 12.00 | 12.00 | 12.23 | 12.00 | 33,400 |   |  
            | 6/26/2009 | +0.70 / +5.83% | 12.80 | 13.00 | 12.40 | 12.70 | 12.67 | 12.70 | 43,500 |   |  			
            | 6/25/2009 | -0.40 / -3.23% | 13.10 | 13.10 | 12.00 | 12.00 | 12.67 | 12.00 | 28,200 |   |  
            | 6/24/2009 | +0.80 / +6.90% | 11.60 | 12.40 | 11.60 | 12.40 | 12.34 | 12.40 | 19,900 |   |  			
            | 6/23/2009 | -0.70 / -5.69% | 11.60 | 11.80 | 11.60 | 11.60 | 11.61 | 11.60 | 64,500 |   |  
            | 6/22/2009 | -0.80 / -6.11% | 13.50 | 13.50 | 12.30 | 12.30 | 12.42 | 12.30 | 17,800 |   |  			
            | 6/19/2009 | +0.40 / +3.15% | 13.50 | 13.50 | 12.40 | 13.10 | 13.16 | 13.10 | 69,100 |   |  
            | 6/18/2009 | -0.30 / -2.31% | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 18,600 |   |  			
            | 6/17/2009 | +0.40 / +3.17% | 11.80 | 13.00 | 11.80 | 13.00 | 11.95 | 13.00 | 115,400 |   |  
            | 6/16/2009 | -0.90 / -6.67% | 12.60 | 12.70 | 12.60 | 12.60 | 12.61 | 12.60 | 59,700 |   |  			
            | 6/15/2009 | -0.50 / -3.57% | 14.20 | 14.20 | 13.50 | 13.50 | 13.52 | 13.50 | 88,500 |   |  
            | 6/12/2009 | -0.80 / -5.41% | 14.70 | 15.10 | 13.90 | 14.00 | 14.49 | 14.00 | 138,800 |   |  			
            | 6/11/2009 | +0.10 / +0.68% | 13.90 | 15.50 | 13.80 | 14.80 | 14.75 | 14.80 | 157,200 |   |  
            | 6/10/2009 | -1.10 / -6.96% | 15.80 | 15.80 | 14.70 | 14.70 | 14.81 | 14.70 | 65,600 |   |  			
            | 6/9/2009 | 0.00 / 0.00% | 16.90 | 16.90 | 15.50 | 15.80 | 15.85 | 15.80 | 140,600 |   |  
            | 6/8/2009 | +1.00 / +6.76% | 15.70 | 15.80 | 15.70 | 15.80 | 15.79 | 15.80 | 50,800 |   |  			
            | 6/5/2009 | +1.00 / +7.25% | 14.60 | 14.80 | 14.60 | 14.80 | 14.78 | 14.80 | 127,400 |   |  
            | 6/4/2009 | +0.60 / +4.55% | 13.00 | 14.00 | 13.00 | 13.80 | 13.86 | 13.80 | 371,000 |   |  |