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                    Closing price on 6/4/2013
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                    | Open | 6.30 |  
                    | High | 6.30 |  
                    | Low | 6.10 |  
                    | Volume | 34,166 |  
                    | Split-adjusted Price | 3.41 |  
                
             | 
 |  SD2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/4/2013 | -0.20 / -3.17% | 6.30 | 6.30 | 6.10 | 6.10 | 6.26 | 3.41 | 34,166 |   |  
            | 6/3/2013 | 0.00 / 0.00% | 6.30 | 6.30 | 6.10 | 6.30 | 6.21 | 3.52 | 13,000 |   |  			
            | 5/31/2013 | 0.00 / 0.00% | 6.30 | 6.50 | 6.20 | 6.30 | 6.30 | 3.52 | 36,632 |   |  
            | 5/30/2013 | +0.10 / +1.61% | 6.10 | 6.30 | 6.10 | 6.30 | 6.17 | 3.52 | 3,500 |   |  			
            | 5/29/2013 | 0.00 / 0.00% | 6.00 | 6.20 | 6.00 | 6.20 | 6.12 | 3.47 | 45,000 |   |  
            | 5/28/2013 | -0.10 / -1.59% | 6.20 | 6.20 | 6.20 | 6.20 | 6.20 | 3.47 | 1,000 |   |  			
            | 5/27/2013 | +0.20 / +3.28% | 6.10 | 6.30 | 6.10 | 6.30 | 6.18 | 3.52 | 19,500 |   |  
            | 5/24/2013 | +0.10 / +1.67% | 5.90 | 6.10 | 5.90 | 6.10 | 6.02 | 3.41 | 5,500 |   |  			
            | 5/23/2013 | -0.10 / -1.64% | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | 3.36 | 100 |   |  
            | 5/22/2013 | +0.10 / +1.67% | 6.00 | 6.10 | 6.00 | 6.10 | 6.00 | 3.41 | 7,800 |   |  			
            | 5/21/2013 | +0.10 / +1.69% | 6.00 | 6.00 | 5.90 | 6.00 | 6.00 | 3.36 | 27,200 |   |  
            | 5/20/2013 | 0.00 / 0.00% | 5.80 | 5.90 | 5.70 | 5.90 | 5.80 | 3.30 | 32,100 |   |  			
            | 5/17/2013 | -0.10 / -1.67% | 5.90 | 5.90 | 5.90 | 5.90 | 5.90 | 3.30 | 15,366 |   |  
            | 5/16/2013 | +0.10 / +1.69% | 5.80 | 6.00 | 5.80 | 6.00 | 5.88 | 3.36 | 5,000 |   |  			
            | 5/15/2013 | -0.10 / -1.67% | 5.80 | 5.90 | 5.80 | 5.90 | 5.82 | 3.30 | 12,033 |   |  
            | 5/14/2013 | 0.00 / 0.00% | 5.80 | 6.00 | 5.80 | 6.00 | 5.80 | 3.36 | 4,800 |   |  			
            | 5/13/2013 | 0.00 / 0.00% | 6.00 | 6.10 | 6.00 | 6.00 | 6.00 | 3.36 | 7,533 |   |  
            | 5/10/2013 | 0.00 / 0.00% | 6.00 | 6.00 | 5.90 | 6.00 | 5.97 | 3.36 | 3,000 |   |  			
            | 5/9/2013 | +0.10 / +1.69% | 6.00 | 6.00 | 5.80 | 6.00 | 5.92 | 3.36 | 28,840 |   |  
            | 5/8/2013 | -0.10 / -1.67% | 6.00 | 6.00 | 5.90 | 5.90 | 5.95 | 3.30 | 9,900 |   |  			
            | 5/7/2013 | -0.10 / -1.64% | 6.10 | 6.10 | 5.80 | 6.00 | 5.91 | 3.36 | 9,366 |   |  
            | 5/6/2013 | +0.20 / +3.39% | 5.90 | 6.10 | 5.90 | 6.10 | 6.03 | 3.41 | 32,966 |   |  			
            | 5/3/2013 | 0.00 / 0.00% | 5.80 | 5.90 | 5.80 | 5.90 | 5.83 | 3.30 | 10,300 |   |  
            | 5/2/2013 | 0.00 / 0.00% | 5.60 | 5.90 | 5.60 | 5.90 | 5.75 | 3.30 | 200 |   |  			
            | 4/26/2013 | +0.10 / +1.72% | 5.90 | 5.90 | 5.90 | 5.90 | 5.90 | 3.30 | 100 |   |  
            | 4/25/2013 | 0.00 / 0.00% | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 3.24 | 7,000 |   |  			
            | 4/24/2013 | 0.00 / 0.00% | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 3.24 | 3,000 |   |  
            | 4/23/2013 | +0.20 / +3.57% | 5.80 | 5.80 | 5.80 | 5.80 | 5.80 | 3.24 | 100 |   |  			
            | 4/22/2013 | 0.00 / 0.00% | 5.70 | 5.70 | 5.60 | 5.60 | 5.67 | 3.13 | 700 |   |  
            | 4/18/2013 | 0.00 / 0.00% | 5.50 | 5.60 | 5.40 | 5.60 | 5.54 | 3.13 | 6,500 |   |  |