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                    Closing price on 6/3/2010
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                    | Open | 26.00 |  
                    | High | 26.20 |  
                    | Low | 26.00 |  
                    | Volume | 5,900 |  
                    | Split-adjusted Price | 7.20 |  
                
             | 
 |  SDC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/3/2010 | -2.00 / -7.14% | 26.00 | 26.20 | 26.00 | 26.00 | 26.00 | 7.20 | 5,900 |   |  
            | 6/2/2010 | +0.30 / +1.08% | 26.00 | 28.00 | 26.00 | 28.00 | 28.00 | 7.75 | 1,800 |   |  			
            | 6/1/2010 | -1.20 / -4.15% | 27.70 | 27.70 | 27.70 | 27.70 | 27.70 | 7.67 | 100 |   |  
            | 5/31/2010 | +1.40 / +5.09% | 25.70 | 28.90 | 25.70 | 28.90 | 28.90 | 8.00 | 200 |   |  			
            | 5/28/2010 | +1.50 / +5.77% | 27.70 | 27.80 | 27.20 | 27.50 | 27.50 | 7.62 | 7,700 |   |  
            | 5/27/2010 | -0.50 / -1.89% | 26.00 | 26.00 | 26.00 | 26.00 | 26.00 | 7.20 | 1,300 |   |  			
            | 5/26/2010 | +0.20 / +0.76% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 7.34 | 1,000 |   |  
            | 5/25/2010 | +0.20 / +0.77% | 26.30 | 26.30 | 26.30 | 26.30 | 26.30 | 7.28 | 500 |   |  			
            | 5/24/2010 | +2.00 / +8.30% | 26.00 | 26.10 | 26.00 | 26.10 | 26.10 | 7.23 | 3,000 |   |  
            | 5/21/2010 | -2.40 / -9.06% | 24.80 | 24.80 | 24.10 | 24.10 | 24.10 | 6.67 | 3,000 |   |  			
            | 5/20/2010 | +0.10 / +0.38% | 25.00 | 26.50 | 25.00 | 26.50 | 26.50 | 7.34 | 2,700 |   |  
            | 5/19/2010 | -2.10 / -7.37% | 27.10 | 27.10 | 26.40 | 26.40 | 26.40 | 7.31 | 3,200 |   |  			
            | 5/18/2010 | +1.50 / +5.56% | 28.00 | 28.50 | 28.00 | 28.50 | 28.50 | 7.89 | 2,100 |   |  
            | 5/17/2010 | -2.40 / -8.16% | 27.10 | 27.10 | 27.00 | 27.00 | 27.00 | 7.48 | 2,000 |   |  			
            | 5/14/2010 | +1.60 / +5.76% | 27.50 | 29.40 | 27.50 | 29.40 | 29.40 | 8.14 | 1,100 |   |  
            | 5/13/2010 | -0.30 / -1.07% | 27.50 | 27.80 | 27.50 | 27.80 | 27.80 | 7.70 | 11,000 |   |  			
            | 5/12/2010 | -1.90 / -6.33% | 28.70 | 28.90 | 28.10 | 28.10 | 28.10 | 7.78 | 14,600 |   |  
            | 5/11/2010 | -0.30 / -0.99% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 8.31 | 5,700 |   |  			
            | 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 |   |  |