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                    Closing price on 2/14/2011
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                    | Open | 12.30 |  
                    | High | 12.30 |  
                    | Low | 12.30 |  
                    | Volume | 4,000 |  
                    | Split-adjusted Price | 12.30 |  
                
             | 
 |  SDB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/14/2011 | -0.90 / -6.82% | 12.30 | 12.30 | 12.30 | 12.30 | 12.30 | 12.30 | 4,000 |   |  
            | 2/11/2011 | -0.60 / -4.35% | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 700 |   |  			
            | 2/10/2011 | -0.20 / -1.43% | 13.50 | 13.80 | 13.50 | 13.80 | 13.80 | 13.80 | 2,000 |   |  
            | 2/9/2011 | -0.20 / -1.41% | 13.80 | 14.00 | 13.80 | 14.00 | 14.00 | 14.00 | 1,000 |   |  			
            | 2/8/2011 | +0.70 / +5.19% | 12.60 | 14.20 | 12.60 | 14.20 | 14.20 | 14.20 | 200 |   |  
            | 1/28/2011 | +0.30 / +2.27% | 13.50 | 13.50 | 13.50 | 13.50 | 13.50 | 13.50 | 100 |   |  			
            | 1/27/2011 | +0.40 / +3.13% | 11.70 | 13.20 | 11.70 | 13.20 | 13.20 | 13.20 | 2,100 |   |  
            | 1/26/2011 | +0.70 / +5.79% | 11.20 | 12.80 | 11.20 | 12.80 | 12.80 | 12.80 | 2,600 |   |  			
            | 1/25/2011 | +0.10 / +0.83% | 12.00 | 12.10 | 12.00 | 12.10 | 12.10 | 12.10 | 2,900 |   |  
            | 1/24/2011 | -0.80 / -6.25% | 12.80 | 12.80 | 12.00 | 12.00 | 12.00 | 12.00 | 2,900 |   |  			
            | 1/21/2011 | 0.00 / 0.00% | 13.00 | 13.00 | 12.80 | 12.80 | 12.80 | 12.80 | 2,600 |   |  
            | 1/20/2011 | +0.30 / +2.40% | 12.80 | 12.80 | 12.80 | 12.80 | 12.80 | 12.80 | 400 |   |  			
            | 1/19/2011 | +0.20 / +1.63% | 12.30 | 12.50 | 12.00 | 12.50 | 12.50 | 12.50 | 8,100 |   |  
            | 1/18/2011 | -0.20 / -1.60% | 13.00 | 13.00 | 12.30 | 12.30 | 12.30 | 12.30 | 24,200 |   |  			
            | 1/17/2011 | -0.50 / -3.85% | 13.20 | 13.20 | 12.50 | 12.50 | 12.50 | 12.50 | 3,200 |   |  
            | 1/14/2011 | 0.00 / 0.00% | 13.00 | 13.00 | 12.80 | 13.00 | 13.00 | 13.00 | 14,800 |   |  			
            | 1/13/2011 | 0.00 / 0.00% | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 10,100 |   |  
            | 1/12/2011 | 0.00 / 0.00% | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 1,600 |   |  			
            | 1/11/2011 | +0.10 / +0.78% | 13.90 | 13.90 | 12.80 | 13.00 | 13.00 | 13.00 | 4,300 |   |  
            | 1/10/2011 | -0.70 / -5.15% | 13.50 | 13.50 | 12.90 | 12.90 | 12.90 | 12.90 | 1,500 |   |  			
            | 1/7/2011 | -0.30 / -2.16% | 13.40 | 14.00 | 13.40 | 13.60 | 13.90 | 13.60 | 2,700 |   |  
            | 1/6/2011 | -0.50 / -3.47% | 14.20 | 14.20 | 13.90 | 13.90 | 13.90 | 13.90 | 900 |   |  			
            | 1/5/2011 | +0.90 / +6.67% | 14.40 | 14.40 | 13.30 | 14.40 | 14.40 | 14.40 | 2,600 |   |  
            | 1/4/2011 | -0.30 / -2.17% | 13.50 | 14.00 | 13.50 | 13.50 | 13.50 | 13.50 | 3,400 |   |  			
            | 12/31/2010 | -0.40 / -2.82% | 14.80 | 14.80 | 13.80 | 13.80 | 14.20 | 13.80 | 900 |   |  
            | 12/30/2010 | -1.00 / -6.58% | 14.30 | 14.30 | 14.20 | 14.20 | 14.20 | 14.20 | 19,700 |   |  			
            | 12/29/2010 | +0.80 / +5.56% | 15.30 | 15.30 | 15.20 | 15.20 | 15.20 | 15.20 | 1,100 |   |  
            | 12/28/2010 | +0.30 / +2.13% | 14.90 | 14.90 | 14.40 | 14.40 | 14.40 | 14.40 | 1,000 |   |  			
            | 12/27/2010 | -2.90 / -17.06% | 14.40 | 14.40 | 14.00 | 14.10 | 14.10 | 14.10 | 10,800 |   |  
            | 12/24/2010 | +0.90 / +5.59% | 17.00 | 17.00 | 16.00 | 17.00 | 16.10 | 17.00 | 7,800 |   |  |