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                    Closing price on 12/16/2010
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        |           
                
                    | Open | 18.50 |  
                    | High | 18.50 |  
                    | Low | 16.30 |  
                    | Volume | 71,500 |  
                    | Split-adjusted Price | 13.15 |  
                
             | 
 |  SD3 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/16/2010 | -0.40 / -2.35% | 18.50 | 18.50 | 16.30 | 16.60 | 16.90 | 13.15 | 71,500 |   |  
            | 12/15/2010 | -0.50 / -2.86% | 18.00 | 18.20 | 17.00 | 17.00 | 17.50 | 13.47 | 70,600 |   |  			
            | 12/14/2010 | -0.50 / -2.78% | 19.20 | 19.20 | 16.80 | 17.50 | 17.80 | 13.86 | 176,200 |   |  
            | 12/13/2010 | +1.10 / +6.51% | 18.00 | 18.00 | 17.50 | 18.00 | 18.00 | 14.26 | 98,500 |   |  			
            | 12/10/2010 | +0.70 / +4.22% | 16.90 | 17.30 | 16.20 | 17.30 | 16.20 | 13.70 | 99,900 |   |  
            | 12/9/2010 | +0.40 / +2.47% | 15.60 | 16.70 | 15.40 | 16.60 | 16.20 | 13.15 | 67,000 |   |  			
            | 12/8/2010 | -0.50 / -2.99% | 16.20 | 17.50 | 16.20 | 16.20 | 16.30 | 12.83 | 99,900 |   |  
            | 12/7/2010 | -0.50 / -2.91% | 17.00 | 18.20 | 16.70 | 16.70 | 17.40 | 13.23 | 134,600 |   |  			
            | 12/6/2010 | +0.20 / +1.18% | 18.00 | 18.10 | 17.10 | 17.20 | 17.90 | 13.62 | 238,100 |   |  
            | 12/3/2010 | +0.70 / +4.29% | 16.80 | 17.00 | 16.80 | 17.00 | 16.90 | 13.47 | 157,100 |   |  			
            | 12/2/2010 | +1.30 / +8.67% | 15.30 | 16.30 | 14.40 | 16.30 | 15.90 | 12.91 | 175,100 |   |  
            | 12/1/2010 | -0.40 / -2.60% | 16.00 | 16.00 | 14.70 | 15.00 | 15.30 | 11.88 | 76,400 |   |  			
            | 11/30/2010 | +0.50 / +3.36% | 15.00 | 15.40 | 15.00 | 15.40 | 15.40 | 12.20 | 71,800 |   |  
            | 11/29/2010 | +0.90 / +6.43% | 14.30 | 14.90 | 13.50 | 14.90 | 14.40 | 11.80 | 114,300 |   |  			
            | 11/26/2010 | +0.10 / +0.72% | 14.00 | 14.30 | 13.60 | 14.00 | 13.70 | 11.09 | 67,200 |   |  
            | 11/25/2010 | +0.70 / +5.30% | 13.40 | 14.00 | 13.30 | 13.90 | 13.70 | 11.01 | 102,900 |   |  			
            | 11/24/2010 | +0.10 / +0.76% | 13.00 | 13.30 | 12.70 | 13.20 | 13.10 | 10.46 | 36,500 |   |  
            | 11/23/2010 | +0.30 / +2.34% | 13.30 | 13.40 | 12.80 | 13.10 | 13.20 | 10.38 | 14,100 |   |  			
            | 11/22/2010 | -0.50 / -3.76% | 13.00 | 13.00 | 12.60 | 12.80 | 12.80 | 10.14 | 3,800 |   |  
            | 11/19/2010 | -0.60 / -4.41% | 13.50 | 13.50 | 13.00 | 13.00 | 13.50 | 10.30 | 12,500 |   |  			
            | 11/18/2010 | +1.20 / +9.68% | 13.30 | 13.60 | 13.30 | 13.60 | 13.50 | 10.77 | 57,100 |   |  
            | 11/17/2010 | -0.70 / -5.34% | 13.60 | 13.60 | 12.30 | 12.40 | 12.80 | 9.82 | 44,700 |   |  			
            | 11/16/2010 | -0.50 / -3.68% | 13.30 | 13.30 | 13.10 | 13.10 | 13.20 | 10.38 | 114,000 |   |  
            | 11/15/2010 | -0.70 / -4.90% | 14.40 | 14.40 | 13.40 | 13.60 | 14.00 | 10.77 | 49,400 |   |  			
            | 11/12/2010 | -0.50 / -3.45% | 14.70 | 14.70 | 13.80 | 14.00 | 14.70 | 11.09 | 40,500 |   |  
            | 11/11/2010 | -0.40 / -2.68% | 14.90 | 15.00 | 14.40 | 14.50 | 14.70 | 11.48 | 21,400 |   |  			
            | 11/10/2010 | +0.30 / +2.05% | 14.70 | 14.90 | 14.50 | 14.90 | 14.90 | 11.80 | 36,200 |   |  
            | 11/9/2010 | -0.40 / -2.67% | 14.60 | 14.70 | 14.30 | 14.60 | 14.50 | 11.56 | 79,000 |   |  			
            | 11/8/2010 | -0.80 / -5.06% | 15.90 | 15.90 | 15.00 | 15.00 | 15.30 | 11.88 | 38,300 |   |  
            | 11/5/2010 | +0.50 / +3.29% | 16.10 | 16.30 | 15.50 | 15.70 | 15.90 | 12.44 | 28,700 |   |  |