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                    Closing price on 5/4/2012
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                    | Open | 12.50 |  
                    | High | 13.00 |  
                    | Low | 12.40 |  
                    | Volume | 107,200 |  
                    | Split-adjusted Price | 12.90 |  
                
             | 
 |  SD7 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/4/2012 | +0.50 / +4.03% | 12.50 | 13.00 | 12.40 | 12.90 | 12.90 | 12.90 | 107,200 |   |  
            | 5/3/2012 | -0.40 / -3.13% | 12.80 | 12.80 | 12.30 | 12.40 | 12.40 | 12.40 | 74,400 |   |  			
            | 5/2/2012 | +0.80 / +6.67% | 12.40 | 12.80 | 12.40 | 12.80 | 12.80 | 12.80 | 280,900 |   |  
            | 4/27/2012 | +0.20 / +1.69% | 11.70 | 12.20 | 11.70 | 12.00 | 12.00 | 12.00 | 41,900 |   |  			
            | 4/26/2012 | -0.20 / -1.67% | 12.10 | 12.40 | 11.80 | 11.80 | 11.80 | 11.80 | 63,500 |   |  
            | 4/25/2012 | 0.00 / 0.00% | 12.00 | 12.30 | 11.90 | 12.00 | 12.00 | 12.00 | 108,700 |   |  			
            | 4/24/2012 | +0.40 / +3.45% | 11.40 | 12.00 | 11.20 | 12.00 | 12.00 | 12.00 | 74,700 |   |  
            | 4/23/2012 | +0.10 / +0.87% | 11.70 | 11.70 | 11.10 | 11.60 | 11.60 | 11.60 | 31,100 |   |  			
            | 4/20/2012 | -0.20 / -1.71% | 11.60 | 11.80 | 11.40 | 11.50 | 11.50 | 11.50 | 88,700 |   |  
            | 4/19/2012 | -0.20 / -1.68% | 12.00 | 12.00 | 11.40 | 11.70 | 11.70 | 11.70 | 107,000 |   |  			
            | 4/18/2012 | -0.10 / -0.83% | 12.10 | 12.40 | 11.60 | 11.90 | 11.90 | 11.90 | 191,100 |   |  
            | 4/17/2012 | -0.30 / -2.44% | 11.90 | 12.60 | 11.90 | 12.00 | 12.00 | 12.00 | 173,800 |   |  			
            | 4/16/2012 | +0.90 / +7.89% | 12.00 | 12.40 | 11.60 | 12.30 | 12.30 | 12.30 | 74,000 |   |  
            | 4/13/2012 | -0.70 / -5.79% | 12.00 | 12.10 | 11.40 | 11.40 | 11.40 | 11.40 | 74,900 |   |  			
            | 4/12/2012 | +0.70 / +6.14% | 11.90 | 12.10 | 11.80 | 12.10 | 12.10 | 12.10 | 309,900 |   |  
            | 4/11/2012 | +0.70 / +6.54% | 10.90 | 11.40 | 10.80 | 11.40 | 11.40 | 11.40 | 194,100 |   |  			
            | 4/10/2012 | -0.20 / -1.83% | 10.70 | 10.90 | 10.50 | 10.70 | 10.70 | 10.70 | 34,000 |   |  
            | 4/9/2012 | +0.50 / +4.81% | 10.60 | 11.00 | 10.60 | 10.90 | 10.90 | 10.90 | 56,300 |   |  			
            | 4/6/2012 | 0.00 / 0.00% | 10.50 | 10.60 | 10.30 | 10.40 | 10.40 | 10.40 | 54,900 |   |  
            | 4/5/2012 | +0.20 / +1.96% | 10.10 | 10.60 | 10.00 | 10.40 | 10.40 | 10.40 | 30,000 |   |  			
            | 4/4/2012 | -0.40 / -3.77% | 10.60 | 10.60 | 10.10 | 10.20 | 10.20 | 10.20 | 26,400 |   |  
            | 4/3/2012 | 0.00 / 0.00% | 10.10 | 10.70 | 9.90 | 10.60 | 10.60 | 10.60 | 68,900 |   |  			
            | 3/30/2012 | -0.10 / -0.93% | 10.50 | 10.60 | 10.00 | 10.60 | 10.60 | 10.60 | 132,400 |   |  
            | 3/29/2012 | -0.80 / -6.96% | 11.50 | 11.50 | 10.70 | 10.70 | 10.70 | 10.70 | 61,000 |   |  			
            | 3/28/2012 | +0.10 / +0.88% | 11.10 | 11.60 | 10.80 | 11.50 | 11.50 | 11.50 | 108,349 |   |  
            | 3/27/2012 | -0.70 / -5.79% | 12.30 | 12.60 | 11.40 | 11.40 | 11.40 | 11.40 | 134,800 |   |  			
            | 3/26/2012 | +0.60 / +5.22% | 11.80 | 12.10 | 11.50 | 12.10 | 12.10 | 12.10 | 132,600 |   |  
            | 3/23/2012 | +0.50 / +4.55% | 11.00 | 11.70 | 11.00 | 11.50 | 11.50 | 11.50 | 178,100 |   |  			
            | 3/22/2012 | 0.00 / 0.00% | 11.20 | 11.30 | 10.60 | 11.00 | 11.00 | 11.00 | 89,200 |   |  
            | 3/21/2012 | +0.40 / +3.77% | 10.80 | 11.10 | 10.50 | 11.00 | 11.00 | 11.00 | 119,800 |   |  |