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                    Closing price on 5/10/2010
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                    | Open | 32.50 |  
                    | High | 32.50 |  
                    | Low | 30.00 |  
                    | Volume | 5,100 |  
                    | Split-adjusted Price | 8.39 |  
                
             | 
 |  SDC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/10/2010 | -2.20 / -6.77% | 32.50 | 32.50 | 30.00 | 30.30 | 30.30 | 8.39 | 5,100 |   |  
            | 5/7/2010 | -0.90 / -2.69% | 32.50 | 32.50 | 31.90 | 32.50 | 32.50 | 8.50 | 19,300 |   |  			
            | 5/6/2010 | +1.10 / +3.41% | 32.50 | 34.70 | 32.50 | 33.40 | 33.40 | 8.73 | 28,600 |   |  
            | 5/5/2010 | +0.50 / +1.57% | 33.20 | 33.50 | 32.00 | 32.30 | 32.30 | 8.45 | 10,400 |   |  			
            | 5/4/2010 | +1.80 / +6.00% | 30.80 | 31.80 | 30.60 | 31.80 | 31.80 | 8.32 | 11,500 |   |  
            | 4/29/2010 | -0.70 / -2.28% | 29.20 | 31.00 | 29.20 | 30.00 | 30.00 | 7.85 | 900 |   |  			
            | 4/28/2010 | +1.10 / +3.72% | 30.70 | 30.90 | 30.70 | 30.70 | 30.70 | 8.03 | 4,400 |   |  
            | 4/27/2010 | -0.90 / -2.95% | 31.60 | 31.60 | 29.60 | 29.60 | 29.60 | 7.74 | 3,700 |   |  			
            | 4/26/2010 | -2.10 / -6.44% | 30.60 | 33.00 | 30.50 | 30.50 | 30.50 | 7.98 | 2,500 |   |  
            | 4/22/2010 | +1.80 / +5.84% | 32.70 | 32.70 | 32.60 | 32.60 | 32.60 | 8.53 | 22,500 |   |  			
            | 4/21/2010 | +1.80 / +6.21% | 30.00 | 30.80 | 28.80 | 30.80 | 30.80 | 8.05 | 24,100 |   |  
            | 4/20/2010 | +1.00 / +3.57% | 28.60 | 29.00 | 28.60 | 29.00 | 29.00 | 7.58 | 2,600 |   |  			
            | 4/19/2010 | -0.30 / -1.06% | 29.00 | 29.00 | 28.00 | 28.00 | 28.00 | 7.32 | 8,000 |   |  
            | 4/16/2010 | -1.50 / -5.03% | 30.50 | 30.50 | 28.20 | 28.30 | 28.30 | 7.40 | 2,300 |   |  			
            | 4/15/2010 | +0.80 / +2.76% | 30.30 | 30.30 | 29.80 | 29.80 | 29.80 | 7.79 | 600 |   |  
            | 4/14/2010 | +1.50 / +5.45% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 7.58 | 100 |   |  			
            | 4/13/2010 | -1.50 / -5.17% | 27.60 | 27.60 | 27.50 | 27.50 | 27.50 | 7.19 | 1,800 |   |  
            | 4/12/2010 | -1.60 / -5.23% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 7.58 | 1,000 |   |  			
            | 4/9/2010 | +1.70 / +5.88% | 28.90 | 30.60 | 28.90 | 30.60 | 30.60 | 8.00 | 9,800 |   |  
            | 4/8/2010 | +1.70 / +6.25% | 28.80 | 28.90 | 28.50 | 28.90 | 28.90 | 7.56 | 8,100 |   |  			
            | 4/7/2010 | +0.10 / +0.37% | 27.00 | 27.20 | 27.00 | 27.20 | 27.20 | 7.11 | 4,700 |   |  
            | 4/6/2010 | -1.20 / -4.24% | 27.10 | 27.10 | 27.00 | 27.10 | 27.10 | 7.09 | 1,700 |   |  			
            | 4/5/2010 | +0.50 / +1.80% | 28.20 | 28.30 | 28.20 | 28.30 | 28.30 | 7.40 | 1,100 |   |  
            | 4/2/2010 | -0.40 / -1.42% | 27.80 | 27.80 | 27.80 | 27.80 | 27.80 | 7.27 | 0 |   |  			
            | 4/1/2010 | +1.40 / +5.22% | 26.50 | 28.20 | 26.50 | 28.20 | 28.20 | 7.37 | 3,800 |   |  
            | 3/31/2010 | -0.20 / -0.74% | 26.60 | 27.00 | 26.10 | 26.80 | 26.80 | 7.01 | 6,500 |   |  			
            | 3/30/2010 | -0.20 / -0.74% | 27.10 | 27.10 | 26.20 | 27.00 | 27.00 | 7.06 | 2,700 |   |  
            | 3/29/2010 | -0.10 / -0.37% | 27.00 | 27.20 | 27.00 | 27.20 | 27.20 | 7.11 | 300 |   |  			
            | 3/26/2010 | +0.30 / +1.11% | 27.30 | 27.30 | 27.30 | 27.30 | 27.30 | 7.14 | 0 |   |  
            | 3/25/2010 | -1.00 / -3.57% | 27.50 | 27.50 | 27.00 | 27.00 | 27.00 | 7.06 | 7,400 |   |  |