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                    Closing price on 5/15/2013
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        |           
                
                    | Open | 5.20 |  
                    | High | 5.40 |  
                    | Low | 5.20 |  
                    | Volume | 4,600 |  
                    | Split-adjusted Price | 5.40 |  
                
             | 
 |  SD7 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/15/2013 | +0.10 / +1.89% | 5.20 | 5.40 | 5.20 | 5.40 | 5.40 | 5.40 | 4,600 |   |  
            | 5/14/2013 | -0.10 / -1.85% | 5.50 | 5.50 | 5.30 | 5.30 | 5.30 | 5.30 | 6,200 |   |  			
            | 5/13/2013 | 0.00 / 0.00% | 5.60 | 5.60 | 5.40 | 5.40 | 5.40 | 5.40 | 2,100 |   |  
            | 5/10/2013 | -0.30 / -5.26% | 5.70 | 5.70 | 5.40 | 5.40 | 5.40 | 5.40 | 11,000 |   |  			
            | 5/9/2013 | +0.10 / +1.79% | 5.40 | 5.80 | 5.40 | 5.70 | 5.70 | 5.70 | 15,500 |   |  
            | 5/8/2013 | -0.10 / -1.75% | 5.70 | 5.80 | 5.50 | 5.60 | 5.60 | 5.60 | 4,100 |   |  			
            | 5/7/2013 | 0.00 / 0.00% | 5.60 | 5.70 | 5.60 | 5.70 | 5.70 | 5.70 | 5,800 |   |  
            | 5/6/2013 | +0.10 / +1.79% | 5.60 | 5.80 | 5.50 | 5.70 | 5.70 | 5.70 | 15,100 |   |  			
            | 5/3/2013 | 0.00 / 0.00% | 5.50 | 5.60 | 5.30 | 5.60 | 5.60 | 5.60 | 1,400 |   |  
            | 5/2/2013 | 0.00 / 0.00% | 5.20 | 5.60 | 5.20 | 5.60 | 5.60 | 5.60 | 6,700 |   |  			
            | 4/26/2013 | 0.00 / 0.00% | 5.20 | 5.60 | 5.20 | 5.60 | 5.60 | 5.60 | 4,600 |   |  
            | 4/25/2013 | -0.10 / -1.75% | 5.60 | 5.70 | 5.40 | 5.60 | 5.60 | 5.60 | 9,100 |   |  			
            | 4/24/2013 | +0.10 / +1.79% | 5.60 | 5.70 | 5.60 | 5.70 | 5.70 | 5.70 | 8,100 |   |  
            | 4/23/2013 | +0.30 / +5.66% | 5.60 | 5.80 | 5.40 | 5.60 | 5.60 | 5.60 | 51,400 |   |  			
            | 4/22/2013 | +0.40 / +8.16% | 4.90 | 5.30 | 4.90 | 5.30 | 5.30 | 5.30 | 26,300 |   |  
            | 4/18/2013 | -0.20 / -3.92% | 5.00 | 5.10 | 4.90 | 4.90 | 4.90 | 4.90 | 9,400 |   |  			
            | 4/17/2013 | +0.20 / +4.08% | 4.80 | 5.10 | 4.70 | 5.10 | 5.10 | 5.10 | 1,700 |   |  
            | 4/16/2013 | +0.10 / +2.08% | 4.70 | 4.90 | 4.70 | 4.90 | 4.90 | 4.90 | 6,700 |   |  			
            | 4/15/2013 | -0.40 / -7.69% | 5.10 | 5.10 | 4.80 | 4.80 | 4.80 | 4.80 | 9,100 |   |  
            | 4/12/2013 | -0.10 / -1.89% | 5.40 | 5.40 | 5.20 | 5.20 | 5.20 | 5.20 | 6,000 |   |  			
            | 4/11/2013 | 0.00 / 0.00% | 5.20 | 5.30 | 5.20 | 5.30 | 5.30 | 5.30 | 13,300 |   |  
            | 4/10/2013 | -0.10 / -1.85% | 5.20 | 5.40 | 4.90 | 5.30 | 5.30 | 5.30 | 52,700 |   |  			
            | 4/9/2013 | -0.10 / -1.82% | 5.20 | 5.40 | 5.20 | 5.40 | 5.40 | 5.40 | 11,400 |   |  
            | 4/8/2013 | 0.00 / 0.00% | 5.50 | 5.50 | 5.40 | 5.50 | 5.50 | 5.50 | 8,200 |   |  			
            | 4/5/2013 | -0.20 / -3.51% | 5.40 | 5.60 | 5.30 | 5.50 | 5.50 | 5.50 | 8,700 |   |  
            | 4/4/2013 | -0.10 / -1.72% | 5.50 | 5.70 | 5.40 | 5.70 | 5.70 | 5.70 | 5,400 |   |  			
            | 4/3/2013 | +0.10 / +1.75% | 5.70 | 5.80 | 5.50 | 5.80 | 5.80 | 5.80 | 17,300 |   |  
            | 4/2/2013 | -0.10 / -1.72% | 5.70 | 5.80 | 5.70 | 5.70 | 5.70 | 5.70 | 2,100 |   |  			
            | 4/1/2013 | +0.10 / +1.75% | 5.70 | 5.80 | 5.70 | 5.80 | 5.80 | 5.80 | 18,900 |   |  
            | 3/29/2013 | +0.10 / +1.79% | 5.60 | 5.70 | 5.30 | 5.70 | 5.70 | 5.70 | 3,600 |   |  |