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                    Closing price on 8/22/2012
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        |           
                
                    | Open | 7.20 |  
                    | High | 7.50 |  
                    | Low | 7.00 |  
                    | Volume | 20,100 |  
                    | Split-adjusted Price | 3.23 |  
                
             | 
 |  SD2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/22/2012 | -0.20 / -2.67% | 7.20 | 7.50 | 7.00 | 7.30 | 7.25 | 3.23 | 20,100 |   |  
            | 8/21/2012 | -0.50 / -6.25% | 7.70 | 7.70 | 7.50 | 7.50 | 7.54 | 3.32 | 22,500 |   |  			
            | 8/20/2012 | +0.10 / +1.27% | 7.90 | 8.30 | 7.90 | 8.00 | 7.99 | 3.54 | 11,200 |   |  
            | 8/17/2012 | 0.00 / 0.00% | 7.80 | 8.00 | 7.80 | 7.90 | 7.82 | 3.50 | 9,500 |   |  			
            | 8/16/2012 | 0.00 / 0.00% | 7.90 | 7.90 | 7.90 | 7.90 | 7.90 | 3.50 | 5,200 |   |  
            | 8/15/2012 | 0.00 / 0.00% | 7.90 | 8.20 | 7.90 | 7.90 | 7.95 | 3.50 | 4,600 |   |  			
            | 8/14/2012 | -0.30 / -3.66% | 8.00 | 8.10 | 7.90 | 7.90 | 8.04 | 3.50 | 13,300 |   |  
            | 8/13/2012 | 0.00 / 0.00% | 8.00 | 8.20 | 8.00 | 8.20 | 8.13 | 3.63 | 2,266 |   |  			
            | 8/10/2012 | +0.10 / +1.23% | 8.00 | 8.30 | 8.00 | 8.20 | 8.03 | 3.63 | 24,200 |   |  
            | 8/9/2012 | +0.10 / +1.25% | 8.10 | 8.30 | 8.10 | 8.10 | 8.15 | 3.59 | 9,100 |   |  			
            | 8/8/2012 | -0.20 / -2.44% | 8.30 | 8.30 | 8.00 | 8.00 | 8.24 | 3.54 | 7,200 |   |  
            | 8/7/2012 | -0.20 / -2.38% | 8.40 | 8.40 | 8.20 | 8.20 | 8.21 | 3.63 | 6,300 |   |  			
            | 8/6/2012 | +0.30 / +3.70% | 8.40 | 8.40 | 8.40 | 8.40 | 8.40 | 3.72 | 4,400 |   |  
            | 8/3/2012 | -0.10 / -1.22% | 8.10 | 8.10 | 8.00 | 8.10 | 8.05 | 3.59 | 15,800 |   |  			
            | 8/2/2012 | +0.10 / +1.23% | 8.10 | 8.20 | 8.10 | 8.20 | 8.10 | 3.63 | 16,533 |   |  
            | 8/1/2012 | -0.10 / -1.22% | 8.50 | 8.50 | 8.10 | 8.10 | 8.12 | 3.59 | 1,900 |   |  			
            | 7/31/2012 | +0.10 / +1.23% | 8.10 | 8.20 | 8.00 | 8.20 | 8.13 | 3.63 | 4,800 |   |  
            | 7/30/2012 | 0.00 / 0.00% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 3.59 | 66 |   |  			
            | 7/27/2012 | -0.20 / -2.41% | 8.30 | 8.30 | 8.00 | 8.10 | 8.11 | 3.59 | 15,400 |   |  
            | 7/26/2012 | +0.20 / +2.47% | 8.10 | 8.30 | 8.10 | 8.30 | 8.11 | 3.67 | 2,100 |   |  			
            | 7/25/2012 | 0.00 / 0.00% | 8.10 | 8.20 | 8.10 | 8.10 | 8.10 | 3.59 | 9,400 |   |  
            | 7/24/2012 | -0.10 / -1.22% | 8.20 | 8.20 | 7.90 | 8.10 | 7.97 | 3.59 | 22,500 |   |  			
            | 7/23/2012 | -0.30 / -3.53% | 8.40 | 8.40 | 8.20 | 8.20 | 8.27 | 3.63 | 20,300 |   |  
            | 7/20/2012 | -0.50 / -5.56% | 9.00 | 9.00 | 8.50 | 8.50 | 8.73 | 3.76 | 5,000 |   |  			
            | 7/19/2012 | +0.50 / +5.88% | 8.40 | 9.00 | 8.40 | 9.00 | 8.87 | 3.98 | 33,500 |   |  
            | 7/18/2012 | 0.00 / 0.00% | 8.40 | 8.50 | 8.40 | 8.50 | 8.40 | 3.76 | 16,400 |   |  			
            | 7/17/2012 | +0.20 / +2.41% | 8.50 | 8.50 | 8.40 | 8.50 | 8.49 | 3.76 | 12,400 |   |  
            | 7/16/2012 | -0.50 / -5.68% | 8.30 | 8.60 | 8.30 | 8.30 | 8.42 | 3.67 | 41,300 |   |  			
            | 7/13/2012 | +0.40 / +4.76% | 8.40 | 8.80 | 8.30 | 8.80 | 8.56 | 3.90 | 34,500 |   |  
            | 7/12/2012 | 0.00 / 0.00% | 8.40 | 8.40 | 8.20 | 8.40 | 8.34 | 3.72 | 12,800 |   |  |