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            | 
                    Closing price on 4/22/2008
                 |  |  
    
        |           
                
                    | Open | 26.50 |  
                    | High | 26.50 |  
                    | Low | 26.50 |  
                    | Volume | 9,980 |  
                    | Split-adjusted Price | 2.13 |  
                
             | 
 |  SDN Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/22/2008 | +0.50 / +1.92% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 2.13 | 9,980 |   |  
            | 4/21/2008 | +0.50 / +1.96% | 26.00 | 26.00 | 26.00 | 26.00 | 26.00 | 2.09 | 1,010 |   |  			
            | 4/18/2008 | -0.50 / -1.92% | 25.50 | 25.50 | 25.50 | 25.50 | 25.50 | 2.05 | 50 |   |  
            | 4/17/2008 | +0.50 / +1.96% | 26.00 | 26.00 | 26.00 | 26.00 | 26.00 | 2.09 | 410 |   |  			
            | 4/16/2008 | -0.50 / -1.92% | 25.50 | 25.50 | 25.50 | 25.50 | 25.50 | 2.05 | 1,100 |   |  
            | 4/11/2008 | -0.50 / -1.89% | 26.00 | 26.00 | 26.00 | 26.00 | 26.00 | 2.09 | 3,000 |   |  			
            | 4/10/2008 | -0.50 / -1.85% | 26.50 | 26.50 | 26.50 | 26.50 | 26.50 | 2.13 | 3,100 |   |  
            | 4/9/2008 | -0.50 / -1.82% | 27.00 | 27.50 | 27.00 | 27.00 | 27.00 | 2.17 | 800 |   |  			
            | 4/8/2008 | +0.40 / +1.48% | 27.60 | 27.60 | 27.50 | 27.50 | 27.50 | 2.21 | 17,910 |   |  
            | 4/7/2008 | +0.50 / +1.88% | 27.10 | 27.10 | 27.10 | 27.10 | 27.10 | 2.18 | 10 |   |  			
            | 4/4/2008 | +0.20 / +0.76% | 26.60 | 26.60 | 26.60 | 26.60 | 26.60 | 2.14 | 1,300 |   |  
            | 4/3/2008 | +0.20 / +0.76% | 26.40 | 26.40 | 26.40 | 26.40 | 26.40 | 2.13 | 10 |   |  			
            | 4/2/2008 | +0.20 / +0.77% | 26.20 | 26.20 | 26.20 | 26.20 | 26.20 | 2.11 | 10 |   |  
            | 4/1/2008 | +0.20 / +0.78% | 26.00 | 26.00 | 26.00 | 26.00 | 26.00 | 2.09 | 8,340 |   |  			
            | 3/31/2008 | +0.20 / +0.78% | 25.80 | 25.80 | 25.80 | 25.80 | 25.80 | 2.08 | 650 |   |  
            | 3/28/2008 | +0.20 / +0.79% | 25.60 | 25.60 | 25.60 | 25.60 | 25.60 | 2.06 | 10 |   |  			
            | 3/26/2008 | +1.20 / +4.96% | 23.40 | 25.40 | 23.40 | 25.40 | 25.40 | 2.05 | 810 |   |  
            | 3/25/2008 | -1.10 / -4.35% | 24.20 | 24.20 | 24.20 | 24.20 | 24.20 | 1.95 | 170 |   |  			
            | 3/24/2008 | -1.30 / -4.89% | 25.30 | 25.30 | 25.30 | 25.30 | 25.30 | 2.04 | 6,000 |   |  
            | 3/21/2008 | -1.40 / -5.00% | 28.00 | 28.00 | 26.60 | 26.60 | 26.60 | 2.14 | 8,340 |   |  			
            | 3/20/2008 | +0.50 / +1.82% | 26.20 | 28.00 | 26.20 | 28.00 | 28.00 | 2.26 | 410 |   |  
            | 3/19/2008 | -1.00 / -3.51% | 27.60 | 27.60 | 27.50 | 27.50 | 27.50 | 2.21 | 4,490 |   |  			
            | 3/18/2008 | -1.50 / -5.00% | 28.50 | 28.50 | 28.50 | 28.50 | 28.50 | 2.30 | 6,000 |   |  
            | 3/17/2008 | -0.10 / -0.33% | 28.60 | 30.00 | 28.60 | 30.00 | 30.00 | 2.42 | 1,110 |   |  			
            | 3/14/2008 | -0.40 / -1.31% | 32.00 | 32.00 | 30.10 | 30.10 | 30.10 | 2.42 | 4,000 |   |  
            | 3/13/2008 | -0.20 / -0.65% | 30.70 | 30.70 | 29.50 | 30.50 | 30.50 | 2.46 | 10,550 |   |  			
            | 3/12/2008 | +1.30 / +4.42% | 29.40 | 30.80 | 29.40 | 30.70 | 30.70 | 2.47 | 6,000 |   |  
            | 3/11/2008 | -1.10 / -3.61% | 30.50 | 30.50 | 29.40 | 29.40 | 29.40 | 2.37 | 10,700 |   |  			
            | 3/10/2008 | +0.80 / +2.69% | 31.10 | 31.10 | 30.00 | 30.50 | 30.50 | 2.46 | 13,890 |   |  
            | 3/7/2008 | +1.40 / +4.95% | 29.00 | 29.70 | 29.00 | 29.70 | 29.70 | 2.39 | 2,110 |   |  |