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                    Closing price on 7/16/2012
                 |  |  
    
        |           
                
                    | Open | 8.30 |  
                    | High | 8.60 |  
                    | Low | 8.30 |  
                    | Volume | 41,300 |  
                    | Split-adjusted Price | 3.67 |  
                
             | 
 |  SD2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 7/11/2012 | +0.10 / +1.20% | 8.30 | 8.40 | 8.30 | 8.40 | 8.31 | 3.72 | 1,800 |   |  			
            | 7/10/2012 | +0.10 / +1.22% | 8.30 | 8.30 | 8.20 | 8.30 | 8.29 | 3.67 | 1,546 |   |  
            | 7/9/2012 | -0.30 / -3.53% | 8.50 | 8.50 | 8.10 | 8.20 | 8.32 | 3.63 | 12,900 |   |  			
            | 7/6/2012 | 0.00 / 0.00% | 8.50 | 8.50 | 8.30 | 8.50 | 8.38 | 3.76 | 9,400 |   |  
            | 7/5/2012 | +0.50 / +6.25% | 8.10 | 8.50 | 8.00 | 8.50 | 8.24 | 3.76 | 16,400 |   |  			
            | 7/4/2012 | -0.20 / -2.44% | 8.50 | 8.50 | 8.00 | 8.00 | 8.14 | 3.54 | 24,800 |   |  
            | 7/3/2012 | -0.60 / -6.82% | 8.40 | 8.50 | 8.10 | 8.20 | 8.22 | 3.63 | 24,900 |   |  			
            | 7/2/2012 | 0.00 / 0.00% | 8.70 | 8.80 | 8.60 | 8.80 | 8.76 | 3.90 | 2,832 |   |  
            | 6/29/2012 | 0.00 / 0.00% | 8.60 | 8.80 | 8.50 | 8.80 | 8.58 | 3.90 | 12,400 |   |  			
            | 6/28/2012 | -0.20 / -2.22% | 9.10 | 9.10 | 8.80 | 8.80 | 8.82 | 3.90 | 3,900 |   |  
            | 6/27/2012 | +0.40 / +4.65% | 8.50 | 9.00 | 8.40 | 9.00 | 8.50 | 3.98 | 22,400 |   |  			
            | 6/26/2012 | -0.50 / -5.49% | 8.60 | 8.70 | 8.40 | 8.60 | 8.54 | 3.81 | 33,700 |   |  
            | 6/25/2012 | 0.00 / 0.00% | 8.90 | 9.20 | 8.70 | 9.10 | 8.91 | 4.03 | 9,000 |   |  			
            | 6/22/2012 | -0.10 / -1.09% | 9.00 | 9.10 | 8.90 | 9.10 | 9.00 | 4.03 | 8,600 |   |  
            | 6/21/2012 | -0.10 / -1.08% | 9.10 | 9.20 | 9.00 | 9.20 | 9.05 | 4.07 | 16,800 |   |  			
            | 6/20/2012 | -0.10 / -1.06% | 9.30 | 9.30 | 9.10 | 9.30 | 9.14 | 4.12 | 21,400 |   |  
            | 6/19/2012 | -0.20 / -2.08% | 9.70 | 9.70 | 9.10 | 9.40 | 9.16 | 4.16 | 43,500 |   |  			
            | 6/18/2012 | +0.10 / +1.05% | 10.00 | 10.00 | 9.50 | 9.60 | 9.51 | 4.25 | 11,600 |   |  
            | 6/15/2012 | +0.20 / +2.15% | 9.60 | 9.60 | 9.30 | 9.50 | 9.45 | 4.21 | 5,400 |   |  			
            | 6/14/2012 | -0.10 / -1.06% | 9.40 | 9.40 | 9.20 | 9.30 | 9.29 | 4.12 | 11,300 |   |  
            | 6/13/2012 | 0.00 / 0.00% | 9.20 | 9.40 | 9.20 | 9.40 | 9.30 | 4.16 | 9,900 |   |  			
            | 6/12/2012 | -0.40 / -4.08% | 9.50 | 9.50 | 9.30 | 9.40 | 9.42 | 4.16 | 17,000 |   |  
            | 6/11/2012 | +0.10 / +1.03% | 9.60 | 9.80 | 9.50 | 9.80 | 9.60 | 4.34 | 9,300 |   |  			
            | 6/8/2012 | -0.20 / -2.02% | 10.00 | 10.10 | 9.50 | 9.70 | 9.73 | 4.29 | 22,900 |   |  
            | 6/7/2012 | +0.60 / +6.45% | 9.40 | 9.90 | 9.40 | 9.90 | 9.74 | 4.38 | 48,000 |   |  			
            | 6/6/2012 | +0.10 / +1.09% | 9.20 | 9.30 | 9.10 | 9.30 | 9.24 | 4.12 | 24,700 |   |  
            | 6/5/2012 | +0.10 / +1.10% | 8.80 | 9.20 | 8.60 | 9.20 | 9.03 | 4.07 | 23,000 |   |  |