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                    Closing price on 7/15/2013
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                    | Open | 6.30 |  
                    | High | 6.50 |  
                    | Low | 6.30 |  
                    | Volume | 6,200 |  
                    | Split-adjusted Price | 3.58 |  
                
             | 
 |  SD2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/15/2013 | -0.10 / -1.54% | 6.30 | 6.50 | 6.30 | 6.40 | 6.35 | 3.58 | 6,200 |   |  
            | 7/12/2013 | +0.10 / +1.56% | 6.40 | 6.50 | 6.30 | 6.50 | 6.36 | 3.64 | 2,100 |   |  			
            | 7/11/2013 | +0.20 / +3.23% | 6.20 | 6.50 | 6.20 | 6.40 | 6.20 | 3.58 | 21,800 |   |  
            | 7/10/2013 | -0.20 / -3.13% | 6.30 | 6.30 | 6.20 | 6.20 | 6.25 | 3.47 | 7,500 |   |  			
            | 7/9/2013 | +0.10 / +1.59% | 6.50 | 6.50 | 6.30 | 6.40 | 6.46 | 3.58 | 1,300 |   |  
            | 7/8/2013 | 0.00 / 0.00% | 6.30 | 6.30 | 6.30 | 6.30 | 6.30 | 3.52 | 500 |   |  			
            | 7/5/2013 | -0.20 / -3.08% | 6.30 | 6.50 | 6.30 | 6.30 | 6.31 | 3.52 | 10,900 |   |  
            | 7/4/2013 | 0.00 / 0.00% | 6.50 | 6.50 | 6.50 | 6.50 | 6.50 | 3.64 | 200 |   |  			
            | 7/3/2013 | 0.00 / 0.00% | 6.40 | 6.50 | 6.20 | 6.50 | 6.39 | 3.64 | 22,300 |   |  
            | 7/2/2013 | +0.40 / +6.56% | 6.50 | 6.60 | 6.40 | 6.50 | 6.48 | 3.64 | 23,900 |   |  			
            | 7/1/2013 | -0.40 / -6.15% | 6.20 | 6.60 | 6.10 | 6.10 | 6.47 | 3.41 | 13,400 |   |  
            | 6/28/2013 | 0.00 / 0.00% | 6.90 | 6.90 | 6.40 | 6.50 | 6.49 | 3.64 | 14,500 |   |  			
            | 6/27/2013 | 0.00 / 0.00% | 6.40 | 6.60 | 6.40 | 6.50 | 6.41 | 3.64 | 42,800 |   |  
            | 6/26/2013 | +0.20 / +3.17% | 6.20 | 6.50 | 6.20 | 6.50 | 6.21 | 3.64 | 5,100 |   |  			
            | 6/25/2013 | -0.10 / -1.56% | 6.50 | 6.60 | 6.20 | 6.30 | 6.39 | 3.52 | 66,100 |   |  
            | 6/24/2013 | 0.00 / 0.00% | 6.50 | 6.60 | 6.40 | 6.40 | 6.52 | 3.58 | 53,100 |   |  			
            | 6/21/2013 | 0.00 / 0.00% | 6.30 | 6.50 | 6.30 | 6.40 | 6.43 | 3.58 | 21,500 |   |  
            | 6/20/2013 | -0.20 / -3.03% | 6.30 | 6.70 | 6.30 | 6.40 | 6.54 | 3.58 | 7,900 |   |  			
            | 6/19/2013 | -0.40 / -5.71% | 6.70 | 6.70 | 6.50 | 6.60 | 6.56 | 3.69 | 66,800 |   |  
            | 6/18/2013 | +0.40 / +6.06% | 6.60 | 7.10 | 6.40 | 7.00 | 6.55 | 3.91 | 49,320 |   |  			
            | 6/17/2013 | -0.10 / -1.49% | 6.80 | 6.80 | 6.40 | 6.60 | 6.58 | 3.69 | 67,000 |   |  
            | 6/14/2013 | +0.50 / +8.06% | 6.20 | 6.80 | 6.20 | 6.70 | 6.69 | 3.75 | 358,400 |   |  			
            | 6/13/2013 | 0.00 / 0.00% | 6.30 | 6.30 | 6.10 | 6.20 | 6.17 | 3.47 | 4,400 |   |  
            | 6/12/2013 | 0.00 / 0.00% | 6.20 | 6.20 | 6.20 | 6.20 | 6.20 | 3.47 | 4,100 |   |  			
            | 6/11/2013 | 0.00 / 0.00% | 6.10 | 6.20 | 6.10 | 6.20 | 6.11 | 3.47 | 7,340 |   |  
            | 6/10/2013 | 0.00 / 0.00% | 6.30 | 6.30 | 6.20 | 6.20 | 6.20 | 3.47 | 21,200 |   |  			
            | 6/7/2013 | -0.10 / -1.59% | 6.30 | 6.30 | 6.00 | 6.20 | 6.14 | 3.47 | 17,600 |   |  
            | 6/6/2013 | +0.10 / +1.61% | 6.10 | 6.30 | 6.10 | 6.30 | 6.17 | 3.52 | 7,100 |   |  			
            | 6/5/2013 | +0.10 / +1.64% | 6.10 | 6.20 | 6.00 | 6.20 | 6.08 | 3.47 | 3,900 |   |  
            | 6/4/2013 | -0.20 / -3.17% | 6.30 | 6.30 | 6.10 | 6.10 | 6.26 | 3.41 | 34,166 |   |  |