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                    Closing price on 6/5/2009
                 |  |  
    
        |           
                
                    | Open | 14.60 |  
                    | High | 14.80 |  
                    | Low | 14.60 |  
                    | Volume | 127,400 |  
                    | Split-adjusted Price | 14.80 |  
                
             | 
 |  SDD Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 6/3/2009 | -0.30 / -2.22% | 13.00 | 13.50 | 12.80 | 13.20 | 13.12 | 13.20 | 86,800 |   |  
            | 6/2/2009 | +0.70 / +5.47% | 13.60 | 13.60 | 13.10 | 13.50 | 13.51 | 13.50 | 111,700 |   |  			
            | 6/1/2009 | +0.30 / +2.40% | 11.80 | 12.80 | 11.80 | 12.80 | 12.76 | 12.80 | 51,000 |   |  
            | 5/29/2009 | -0.10 / -0.79% | 11.80 | 12.50 | 11.80 | 12.50 | 11.99 | 12.50 | 132,900 |   |  			
            | 5/28/2009 | -0.80 / -5.97% | 13.00 | 13.00 | 12.60 | 12.60 | 12.63 | 12.60 | 54,400 |   |  
            | 5/27/2009 | -0.20 / -1.47% | 14.00 | 14.50 | 12.80 | 13.40 | 13.55 | 13.40 | 152,000 |   |  			
            | 5/26/2009 | +0.80 / +6.25% | 13.60 | 13.60 | 13.40 | 13.60 | 13.59 | 13.60 | 191,200 |   |  
            | 5/25/2009 | +0.70 / +5.79% | 12.80 | 12.80 | 12.50 | 12.80 | 12.76 | 12.80 | 252,500 |   |  			
            | 5/22/2009 | +0.70 / +6.14% | 12.10 | 12.10 | 11.50 | 12.10 | 12.03 | 12.10 | 416,100 |   |  
            | 5/21/2009 | +0.70 / +6.54% | 11.40 | 11.40 | 11.40 | 11.40 | 11.40 | 11.40 | 134,800 |   |  			
            | 5/20/2009 | +0.50 / +4.90% | 10.70 | 10.70 | 10.70 | 10.70 | 10.70 | 10.70 | 127,400 |   |  
            | 5/19/2009 | +0.60 / +6.25% | 10.20 | 10.20 | 9.80 | 10.20 | 10.04 | 10.20 | 157,600 |   |  			
            | 5/18/2009 | +0.10 / +1.05% | 9.70 | 9.80 | 9.40 | 9.60 | 9.57 | 9.60 | 60,100 |   |  
            | 5/15/2009 | +0.30 / +3.26% | 9.60 | 9.60 | 9.20 | 9.50 | 9.45 | 9.50 | 62,800 |   |  			
            | 5/14/2009 | -0.20 / -2.13% | 9.60 | 9.60 | 8.80 | 9.20 | 9.05 | 9.20 | 25,500 |   |  
            | 5/13/2009 | +0.40 / +4.44% | 9.10 | 9.40 | 9.00 | 9.40 | 9.08 | 9.40 | 44,000 |   |  			
            | 5/12/2009 | +0.20 / +2.27% | 8.90 | 9.10 | 8.30 | 9.00 | 8.94 | 9.00 | 17,900 |   |  
            | 5/11/2009 | -0.20 / -2.22% | 9.10 | 9.20 | 8.60 | 8.80 | 8.81 | 8.80 | 47,500 |   |  			
            | 5/8/2009 | -0.50 / -5.26% | 9.50 | 9.50 | 8.90 | 9.00 | 9.02 | 9.00 | 43,300 |   |  
            | 5/7/2009 | +0.10 / +1.06% | 9.80 | 9.80 | 9.40 | 9.50 | 9.51 | 9.50 | 20,200 |   |  			
            | 5/6/2009 | -0.50 / -5.05% | 9.40 | 10.00 | 9.40 | 9.40 | 9.43 | 9.40 | 12,100 |   |  
            | 5/5/2009 | +0.40 / +4.21% | 10.10 | 10.10 | 9.80 | 9.90 | 10.08 | 9.90 | 104,800 |   |  			
            | 5/4/2009 | +0.60 / +6.74% | 9.50 | 9.50 | 9.50 | 9.50 | 9.50 | 9.50 | 26,400 |   |  
            | 4/29/2009 | 0.00 / 0.00% | 8.60 | 9.00 | 8.60 | 8.90 | 8.87 | 8.90 | 21,400 |   |  			
            | 4/28/2009 | +0.20 / +2.30% | 8.70 | 8.90 | 8.60 | 8.90 | 8.70 | 8.90 | 6,400 |   |  
            | 4/27/2009 | +0.10 / +1.16% | 8.50 | 8.70 | 8.50 | 8.70 | 8.56 | 8.70 | 4,700 |   |  			
            | 4/24/2009 | -0.70 / -7.53% | 8.80 | 8.90 | 8.50 | 8.60 | 8.56 | 8.60 | 24,300 |   |  
            | 4/23/2009 | +0.10 / +1.09% | 9.30 | 9.30 | 8.80 | 9.30 | 9.07 | 9.30 | 12,000 |   |  |