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                    Closing price on 3/1/2012
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        |           
                
                    | Open | 4.50 |  
                    | High | 4.50 |  
                    | Low | 4.30 |  
                    | Volume | 50,400 |  
                    | Split-adjusted Price | 4.00 |  
                
             | 
 |  SD3 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/1/2012 | -0.20 / -4.26% | 4.50 | 4.50 | 4.30 | 4.50 | 4.40 | 4.00 | 50,400 |   |  
            | 2/29/2012 | +0.20 / +4.44% | 4.40 | 4.70 | 4.40 | 4.70 | 4.60 | 4.18 | 92,400 |   |  			
            | 2/28/2012 | -0.10 / -2.17% | 4.80 | 4.80 | 4.50 | 4.50 | 4.70 | 4.00 | 120,200 |   |  
            | 2/27/2012 | +0.30 / +6.98% | 4.10 | 4.60 | 4.10 | 4.60 | 4.50 | 4.09 | 111,700 |   |  			
            | 2/24/2012 | +0.10 / +2.44% | 4.20 | 4.30 | 4.20 | 4.20 | 4.23 | 3.74 | 98,300 |   |  
            | 2/23/2012 | +0.20 / +5.13% | 4.10 | 4.10 | 3.90 | 4.10 | 4.10 | 3.65 | 79,500 |   |  			
            | 2/22/2012 | +0.10 / +2.63% | 3.90 | 4.00 | 3.70 | 3.90 | 3.90 | 3.47 | 41,400 |   |  
            | 2/21/2012 | -0.10 / -2.56% | 3.90 | 4.10 | 3.80 | 3.80 | 3.90 | 3.38 | 63,200 |   |  			
            | 2/20/2012 | +0.20 / +5.41% | 3.80 | 3.90 | 3.70 | 3.90 | 3.90 | 3.47 | 69,700 |   |  
            | 2/17/2012 | +0.10 / +2.78% | 3.70 | 3.70 | 3.60 | 3.70 | 3.60 | 3.29 | 19,400 |   |  			
            | 2/16/2012 | +0.10 / +2.86% | 3.70 | 3.70 | 3.40 | 3.60 | 3.60 | 3.20 | 8,400 |   |  
            | 2/15/2012 | -0.20 / -5.41% | 3.80 | 3.80 | 3.50 | 3.50 | 3.60 | 3.11 | 5,500 |   |  			
            | 2/14/2012 | +0.20 / +5.71% | 3.70 | 3.70 | 3.60 | 3.70 | 3.60 | 3.29 | 22,000 |   |  
            | 2/13/2012 | -0.20 / -5.41% | 3.80 | 3.80 | 3.50 | 3.50 | 3.50 | 3.11 | 15,400 |   |  			
            | 2/10/2012 | -0.20 / -5.26% | 3.90 | 4.00 | 3.60 | 3.60 | 3.80 | 3.20 | 25,800 |   |  
            | 2/9/2012 | 0.00 / 0.00% | 4.00 | 4.00 | 3.70 | 3.80 | 3.80 | 3.38 | 50,500 |   |  			
            | 2/8/2012 | 0.00 / 0.00% | 3.80 | 3.90 | 3.70 | 3.80 | 3.80 | 3.38 | 36,600 |   |  
            | 2/7/2012 | +0.10 / +2.70% | 3.90 | 3.90 | 3.60 | 3.80 | 3.70 | 3.38 | 10,500 |   |  			
            | 2/6/2012 | -0.20 / -5.13% | 4.00 | 4.00 | 3.70 | 3.70 | 3.70 | 3.29 | 12,800 |   |  
            | 2/3/2012 | -0.20 / -4.88% | 4.30 | 4.30 | 3.90 | 3.90 | 4.10 | 3.47 | 26,900 |   |  			
            | 2/2/2012 | +0.30 / +7.89% | 4.10 | 4.10 | 3.80 | 4.10 | 4.10 | 3.65 | 51,700 |   |  
            | 2/1/2012 | -0.10 / -2.56% | 4.00 | 4.00 | 3.70 | 3.80 | 3.90 | 3.38 | 24,400 |   |  			
            | 1/31/2012 | +0.20 / +5.41% | 3.80 | 3.90 | 3.80 | 3.90 | 3.90 | 3.47 | 47,300 |   |  
            | 1/30/2012 | +0.10 / +2.78% | 3.80 | 3.80 | 3.70 | 3.70 | 3.70 | 3.29 | 7,000 |   |  			
            | 1/20/2012 | -0.10 / -2.70% | 3.80 | 3.80 | 3.60 | 3.60 | 3.70 | 3.20 | 12,000 |   |  
            | 1/19/2012 | +0.20 / +5.71% | 3.60 | 3.70 | 3.60 | 3.70 | 3.70 | 3.29 | 23,900 |   |  			
            | 1/18/2012 | +0.10 / +2.94% | 3.50 | 3.50 | 3.40 | 3.50 | 3.50 | 3.11 | 12,700 |   |  
            | 1/17/2012 | +0.10 / +3.03% | 3.40 | 3.50 | 3.30 | 3.40 | 3.40 | 3.02 | 18,500 |   |  			
            | 1/16/2012 | +0.20 / +6.45% | 3.30 | 3.30 | 3.10 | 3.30 | 3.30 | 2.94 | 23,700 |   |  
            | 1/13/2012 | +0.20 / +6.67% | 3.20 | 3.20 | 3.00 | 3.20 | 3.00 | 2.85 | 9,600 |   |  |