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                    Closing price on 7/20/2012
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        |           
                
                    | Open | 5.30 |  
                    | High | 5.30 |  
                    | Low | 4.90 |  
                    | Volume | 20,400 |  
                    | Split-adjusted Price | 5.20 |  
                
             | 
 |  SD1 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/20/2012 | 0.00 / 0.00% | 5.30 | 5.30 | 4.90 | 5.20 | 5.20 | 5.20 | 20,400 |   |  
            | 7/19/2012 | +0.20 / +4.00% | 4.80 | 5.20 | 4.80 | 5.20 | 5.20 | 5.20 | 9,100 |   |  			
            | 7/18/2012 | -0.10 / -1.96% | 5.10 | 5.10 | 4.90 | 5.00 | 5.00 | 5.00 | 13,900 |   |  
            | 7/17/2012 | +0.10 / +2.00% | 4.80 | 5.10 | 4.80 | 5.10 | 5.10 | 5.10 | 4,700 |   |  			
            | 7/16/2012 | 0.00 / 0.00% | 5.00 | 5.10 | 4.80 | 5.00 | 5.00 | 5.00 | 13,500 |   |  
            | 7/13/2012 | +0.10 / +2.04% | 4.90 | 5.00 | 4.80 | 5.00 | 4.90 | 5.00 | 9,800 |   |  			
            | 7/12/2012 | -0.10 / -2.00% | 5.00 | 5.00 | 4.80 | 4.90 | 4.90 | 4.90 | 1,500 |   |  
            | 7/11/2012 | +0.10 / +2.04% | 4.90 | 5.00 | 4.70 | 5.00 | 5.00 | 5.00 | 7,400 |   |  			
            | 7/10/2012 | +0.20 / +4.26% | 4.70 | 4.90 | 4.70 | 4.90 | 4.90 | 4.90 | 10,500 |   |  
            | 7/9/2012 | -0.30 / -6.00% | 4.70 | 4.80 | 4.70 | 4.70 | 4.70 | 4.70 | 3,400 |   |  			
            | 7/6/2012 | 0.00 / 0.00% | 4.90 | 5.00 | 4.80 | 5.00 | 5.00 | 5.00 | 3,700 |   |  
            | 7/5/2012 | +0.20 / +4.17% | 4.80 | 5.00 | 4.80 | 5.00 | 5.00 | 5.00 | 2,300 |   |  			
            | 7/4/2012 | 0.00 / 0.00% | 5.00 | 5.00 | 4.80 | 4.80 | 4.80 | 4.80 | 22,800 |   |  
            | 7/3/2012 | -0.20 / -4.00% | 4.80 | 4.80 | 4.70 | 4.80 | 4.80 | 4.80 | 42,400 |   |  			
            | 7/2/2012 | 0.00 / 0.00% | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 0 |   |  
            | 6/29/2012 | +0.20 / +4.17% | 4.90 | 5.00 | 4.90 | 5.00 | 4.95 | 5.00 | 1,500 |   |  			
            | 6/28/2012 | -0.20 / -4.00% | 4.80 | 4.90 | 4.70 | 4.80 | 4.80 | 4.80 | 72,700 |   |  
            | 6/27/2012 | -0.30 / -5.66% | 5.40 | 5.40 | 5.00 | 5.00 | 5.00 | 5.00 | 9,700 |   |  			
            | 6/26/2012 | -0.30 / -5.36% | 5.30 | 5.30 | 5.30 | 5.30 | 5.30 | 5.30 | 3,900 |   |  
            | 6/25/2012 | 0.00 / 0.00% | 5.30 | 5.60 | 5.30 | 5.60 | 5.60 | 5.60 | 1,200 |   |  			
            | 6/22/2012 | -0.10 / -1.75% | 5.50 | 5.60 | 5.40 | 5.60 | 5.53 | 5.60 | 6,000 |   |  
            | 6/21/2012 | -0.20 / -3.39% | 5.70 | 5.70 | 5.70 | 5.70 | 5.70 | 5.70 | 1,200 |   |  			
            | 6/20/2012 | +0.10 / +1.72% | 5.60 | 5.90 | 5.60 | 5.90 | 5.90 | 5.90 | 2,900 |   |  
            | 6/19/2012 | 0.00 / 0.00% | 5.60 | 5.80 | 5.60 | 5.80 | 5.80 | 5.80 | 3,500 |   |  			
            | 6/18/2012 | -0.10 / -1.69% | 5.90 | 5.90 | 5.80 | 5.80 | 5.80 | 5.80 | 4,900 |   |  
            | 6/15/2012 | -0.10 / -1.67% | 5.90 | 5.90 | 5.70 | 5.90 | 5.85 | 5.90 | 1,200 |   |  			
            | 6/14/2012 | -0.20 / -3.23% | 5.80 | 6.00 | 5.80 | 6.00 | 6.00 | 6.00 | 15,500 |   |  
            | 6/13/2012 | -0.10 / -1.59% | 6.00 | 6.20 | 5.80 | 6.20 | 6.20 | 6.20 | 5,800 |   |  			
            | 6/12/2012 | -0.10 / -1.56% | 6.00 | 6.30 | 6.00 | 6.30 | 6.30 | 6.30 | 18,000 |   |  
            | 6/11/2012 | +0.20 / +3.23% | 6.00 | 6.50 | 6.00 | 6.40 | 6.40 | 6.40 | 9,200 |   |  |