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                    Closing price on 7/3/2012
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                    | Open | 4.80 |  
                    | High | 4.80 |  
                    | Low | 4.70 |  
                    | Volume | 42,400 |  
                    | Split-adjusted Price | 4.80 |  
                
             | 
 |  SD1 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 6/8/2012 | -0.20 / -3.13% | 6.00 | 6.30 | 6.00 | 6.20 | 6.13 | 6.20 | 28,900 |   |  			
            | 6/7/2012 | +0.10 / +1.59% | 6.30 | 6.40 | 6.00 | 6.40 | 6.40 | 6.40 | 49,900 |   |  
            | 6/6/2012 | +0.10 / +1.61% | 6.20 | 6.30 | 6.00 | 6.30 | 6.30 | 6.30 | 8,900 |   |  			
            | 6/5/2012 | +0.20 / +3.33% | 6.00 | 6.20 | 6.00 | 6.20 | 6.20 | 6.20 | 10,700 |   |  
            | 6/4/2012 | +0.20 / +3.45% | 6.10 | 6.10 | 5.60 | 6.00 | 6.00 | 6.00 | 10,600 |   |  			
            | 6/1/2012 | -0.30 / -4.92% | 5.80 | 6.30 | 5.80 | 5.80 | 6.10 | 5.80 | 18,700 |   |  
            | 5/31/2012 | -0.40 / -6.15% | 6.20 | 6.20 | 6.10 | 6.10 | 6.10 | 6.10 | 17,500 |   |  			
            | 5/30/2012 | -0.20 / -2.99% | 6.50 | 6.70 | 6.30 | 6.50 | 6.50 | 6.50 | 40,600 |   |  
            | 5/29/2012 | -0.10 / -1.47% | 6.40 | 6.70 | 6.40 | 6.70 | 6.70 | 6.70 | 1,000 |   |  			
            | 5/28/2012 | +0.10 / +1.49% | 6.60 | 6.80 | 6.30 | 6.80 | 6.80 | 6.80 | 25,400 |   |  
            | 5/25/2012 | +0.30 / +4.69% | 6.40 | 6.70 | 6.40 | 6.70 | 6.40 | 6.70 | 10,800 |   |  			
            | 5/24/2012 | -0.40 / -5.88% | 6.40 | 6.40 | 6.40 | 6.40 | 6.40 | 6.40 | 24,700 |   |  
            | 5/23/2012 | -0.60 / -8.11% | 6.80 | 6.80 | 6.80 | 6.80 | 6.80 | 6.80 | 22,700 |   |  |