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                    Closing price on 2/22/2013
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        |           
                
                    | Open | 6.50 |  
                    | High | 6.50 |  
                    | Low | 6.10 |  
                    | Volume | 13,500 |  
                    | Split-adjusted Price | 6.40 |  
                
             | 
 |  SD7 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/22/2013 | +0.20 / +3.23% | 6.50 | 6.50 | 6.10 | 6.40 | 6.40 | 6.40 | 13,500 |   |  
            | 2/21/2013 | -0.60 / -8.82% | 6.70 | 7.00 | 6.20 | 6.20 | 6.20 | 6.20 | 82,600 |   |  			
            | 2/20/2013 | +0.10 / +1.49% | 6.80 | 6.90 | 6.60 | 6.80 | 6.80 | 6.80 | 24,100 |   |  
            | 2/19/2013 | -0.20 / -2.90% | 6.90 | 7.00 | 6.70 | 6.70 | 6.70 | 6.70 | 61,700 |   |  			
            | 2/18/2013 | +0.50 / +7.81% | 6.60 | 7.00 | 6.60 | 6.90 | 6.90 | 6.90 | 57,900 |   |  
            | 2/8/2013 | +0.20 / +3.23% | 6.40 | 6.50 | 6.40 | 6.40 | 6.40 | 6.40 | 27,300 |   |  			
            | 2/7/2013 | +0.20 / +3.33% | 6.00 | 6.20 | 6.00 | 6.20 | 6.20 | 6.20 | 5,600 |   |  
            | 2/6/2013 | 0.00 / 0.00% | 6.10 | 6.10 | 6.00 | 6.00 | 6.00 | 6.00 | 18,300 |   |  			
            | 2/5/2013 | 0.00 / 0.00% | 6.00 | 6.00 | 5.80 | 6.00 | 6.00 | 6.00 | 8,100 |   |  
            | 2/4/2013 | 0.00 / 0.00% | 6.20 | 6.20 | 6.00 | 6.00 | 6.00 | 6.00 | 4,300 |   |  			
            | 2/1/2013 | -0.20 / -3.23% | 6.20 | 6.20 | 5.90 | 6.00 | 6.00 | 6.00 | 19,800 |   |  
            | 1/31/2013 | 0.00 / 0.00% | 6.30 | 6.50 | 6.10 | 6.20 | 6.20 | 6.20 | 27,600 |   |  			
            | 1/30/2013 | -0.10 / -1.59% | 6.30 | 6.50 | 6.20 | 6.20 | 6.20 | 6.20 | 14,000 |   |  
            | 1/29/2013 | 0.00 / 0.00% | 6.20 | 6.30 | 6.10 | 6.30 | 6.30 | 6.30 | 41,700 |   |  			
            | 1/28/2013 | +0.50 / +8.62% | 6.00 | 6.40 | 6.00 | 6.30 | 6.30 | 6.30 | 27,900 |   |  
            | 1/25/2013 | -0.30 / -4.92% | 6.10 | 6.40 | 5.80 | 5.80 | 5.80 | 5.80 | 20,700 |   |  			
            | 1/24/2013 | +0.30 / +5.17% | 6.00 | 6.10 | 5.70 | 6.10 | 6.10 | 6.10 | 18,500 |   |  
            | 1/23/2013 | -0.10 / -1.69% | 5.90 | 6.10 | 5.50 | 5.80 | 5.80 | 5.80 | 31,700 |   |  			
            | 1/22/2013 | -0.40 / -6.35% | 6.10 | 6.10 | 5.80 | 5.90 | 5.90 | 5.90 | 132,200 |   |  
            | 1/21/2013 | -0.70 / -10.00% | 6.80 | 6.80 | 6.30 | 6.30 | 6.30 | 6.30 | 108,300 |   |  			
            | 1/18/2013 | -0.20 / -2.78% | 7.10 | 7.10 | 6.90 | 7.00 | 7.00 | 7.00 | 42,300 |   |  
            | 1/17/2013 | +0.50 / +7.46% | 7.30 | 7.30 | 6.70 | 7.20 | 7.20 | 7.20 | 209,200 |   |  			
            | 1/16/2013 | +0.60 / +9.84% | 6.30 | 6.70 | 6.10 | 6.70 | 6.70 | 6.70 | 162,100 |   |  
            | 1/15/2013 | +0.30 / +5.17% | 5.90 | 6.20 | 5.80 | 6.10 | 6.10 | 6.10 | 44,500 |   |  			
            | 1/14/2013 | 0.00 / 0.00% | 5.60 | 5.80 | 5.40 | 5.80 | 5.80 | 5.80 | 34,900 |   |  
            | 1/11/2013 | -0.10 / -1.69% | 5.90 | 6.00 | 5.80 | 5.80 | 5.80 | 5.80 | 23,300 |   |  			
            | 1/10/2013 | +0.20 / +3.51% | 5.70 | 5.90 | 5.70 | 5.90 | 5.90 | 5.90 | 3,000 |   |  
            | 1/9/2013 | -0.30 / -5.00% | 6.00 | 6.20 | 5.70 | 5.70 | 5.70 | 5.70 | 67,300 |   |  			
            | 1/8/2013 | 0.00 / 0.00% | 5.80 | 6.00 | 5.60 | 6.00 | 6.00 | 6.00 | 96,300 |   |  
            | 1/7/2013 | -0.30 / -4.76% | 6.10 | 6.30 | 6.00 | 6.00 | 6.00 | 6.00 | 54,000 |   |  |