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                    Closing price on 10/20/2011
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        |           
                
                    | Open | 14.50 |  
                    | High | 14.50 |  
                    | Low | 13.80 |  
                    | Volume | 12,500 |  
                    | Split-adjusted Price | 14.20 |  
                
             | 
 |  SD7 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/20/2011 | +0.30 / +2.16% | 14.50 | 14.50 | 13.80 | 14.20 | 14.20 | 14.20 | 12,500 |   |  
            | 10/19/2011 | +0.10 / +0.72% | 13.90 | 13.90 | 13.70 | 13.90 | 13.90 | 13.90 | 33,500 |   |  			
            | 10/18/2011 | -0.10 / -0.72% | 13.80 | 13.80 | 13.70 | 13.80 | 13.80 | 13.80 | 27,900 |   |  
            | 10/17/2011 | -0.10 / -0.71% | 14.20 | 14.20 | 13.80 | 13.90 | 13.90 | 13.90 | 44,200 |   |  			
            | 10/14/2011 | 0.00 / 0.00% | 14.20 | 14.20 | 14.00 | 14.00 | 14.00 | 14.00 | 7,300 |   |  
            | 10/13/2011 | 0.00 / 0.00% | 14.10 | 14.20 | 13.90 | 14.00 | 14.00 | 14.00 | 13,900 |   |  			
            | 10/12/2011 | -0.40 / -2.78% | 14.20 | 14.60 | 14.00 | 14.00 | 14.00 | 14.00 | 34,600 |   |  
            | 10/11/2011 | 0.00 / 0.00% | 14.80 | 14.80 | 14.40 | 14.40 | 14.40 | 14.40 | 8,500 |   |  			
            | 10/10/2011 | -0.20 / -1.37% | 14.40 | 14.50 | 14.20 | 14.40 | 14.40 | 14.40 | 32,200 |   |  
            | 10/7/2011 | -0.50 / -3.31% | 14.80 | 14.90 | 14.50 | 14.60 | 14.60 | 14.60 | 5,100 |   |  			
            | 10/6/2011 | +0.90 / +6.34% | 14.80 | 15.10 | 14.60 | 15.10 | 15.10 | 15.10 | 27,000 |   |  
            | 10/5/2011 | -0.10 / -0.70% | 14.40 | 14.50 | 14.20 | 14.20 | 14.20 | 14.20 | 20,100 |   |  			
            | 10/4/2011 | 0.00 / 0.00% | 14.10 | 14.60 | 14.10 | 14.30 | 14.30 | 14.30 | 25,600 |   |  
            | 10/3/2011 | -0.30 / -2.05% | 14.60 | 14.60 | 14.20 | 14.30 | 14.30 | 14.30 | 47,300 |   |  			
            | 9/30/2011 | -0.40 / -2.67% | 14.50 | 15.00 | 14.50 | 14.60 | 14.60 | 14.60 | 26,700 |   |  
            | 9/29/2011 | -0.50 / -3.23% | 15.60 | 15.60 | 14.80 | 15.00 | 15.00 | 15.00 | 70,100 |   |  			
            | 9/28/2011 | -0.10 / -0.64% | 15.70 | 15.80 | 15.50 | 15.50 | 15.50 | 15.50 | 55,800 |   |  
            | 9/27/2011 | 0.00 / 0.00% | 15.60 | 16.00 | 15.50 | 15.60 | 15.60 | 15.60 | 44,300 |   |  			
            | 9/26/2011 | -0.10 / -0.64% | 15.70 | 15.80 | 15.50 | 15.60 | 15.60 | 15.60 | 41,500 |   |  
            | 9/23/2011 | -0.50 / -3.09% | 16.00 | 16.00 | 15.60 | 15.70 | 15.70 | 15.70 | 33,300 |   |  			
            | 9/22/2011 | +0.60 / +3.85% | 15.00 | 16.50 | 14.70 | 16.20 | 16.20 | 16.20 | 36,000 |   |  
            | 9/21/2011 | 0.00 / 0.00% | 15.80 | 16.00 | 15.10 | 15.60 | 15.60 | 15.60 | 54,300 |   |  			
            | 9/20/2011 | -0.60 / -3.70% | 16.10 | 16.10 | 15.40 | 15.60 | 15.60 | 15.60 | 54,300 |   |  
            | 9/19/2011 | +0.30 / +1.89% | 15.80 | 16.50 | 15.80 | 16.20 | 16.20 | 16.20 | 29,400 |   |  			
            | 9/16/2011 | -1.00 / -5.92% | 17.00 | 17.00 | 15.90 | 15.90 | 15.90 | 15.90 | 129,100 |   |  
            | 9/15/2011 | -0.50 / -2.87% | 19.00 | 19.00 | 16.90 | 16.90 | 16.90 | 16.90 | 184,300 |   |  			
            | 9/14/2011 | -1.40 / -7.45% | 17.80 | 19.00 | 17.40 | 17.40 | 17.40 | 17.40 | 180,000 |   |  
            | 9/13/2011 | +0.90 / +5.03% | 18.50 | 18.80 | 18.20 | 18.80 | 18.80 | 18.80 | 203,700 |   |  			
            | 9/12/2011 | +1.30 / +7.83% | 16.80 | 17.90 | 16.80 | 17.90 | 17.90 | 17.90 | 204,800 |   |  
            | 9/9/2011 | -0.40 / -2.35% | 17.30 | 17.40 | 16.30 | 16.60 | 16.60 | 16.60 | 90,200 |   |  |