| 
    
        
            | 
                    Closing price on 8/6/2007
                 |  |  
    
        |           
                
                    | Open | 37.20 |  
                    | High | 38.60 |  
                    | Low | 37.10 |  
                    | Volume | 6,710 |  
                    | Split-adjusted Price | 3.11 |  
                
             | 
 |  SDN Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/6/2007 | -0.10 / -0.26% | 37.20 | 38.60 | 37.10 | 38.60 | 38.60 | 3.11 | 6,710 |   |  
            | 8/3/2007 | -1.00 / -2.52% | 41.30 | 41.40 | 38.70 | 38.70 | 38.70 | 3.12 | 4,450 |   |  			
            | 8/2/2007 | -1.80 / -4.34% | 39.50 | 40.00 | 39.50 | 39.70 | 39.70 | 3.20 | 2,000 |   |  
            | 8/1/2007 | +1.60 / +4.01% | 39.90 | 41.50 | 39.90 | 41.50 | 41.50 | 3.34 | 7,100 |   |  			
            | 7/31/2007 | -2.00 / -4.77% | 40.00 | 40.00 | 39.90 | 39.90 | 39.90 | 3.21 | 2,930 |   |  
            | 7/30/2007 | +0.90 / +2.20% | 41.90 | 41.90 | 41.90 | 41.90 | 41.90 | 3.37 | 750 |   |  			
            | 7/27/2007 | +0.50 / +1.23% | 40.50 | 41.00 | 38.70 | 41.00 | 41.00 | 3.30 | 1,850 |   |  
            | 7/26/2007 | -0.50 / -1.22% | 40.50 | 40.50 | 40.50 | 40.50 | 40.50 | 3.26 | 5,010 |   |  			
            | 7/25/2007 | -1.50 / -3.53% | 42.50 | 42.50 | 41.00 | 41.00 | 41.00 | 3.30 | 4,910 |   |  
            | 7/24/2007 | -0.10 / -0.23% | 42.60 | 42.60 | 42.50 | 42.50 | 42.50 | 3.42 | 11,530 |   |  			
            | 7/23/2007 | 0.00 / 0.00% | 42.60 | 42.60 | 42.60 | 42.60 | 42.60 | 3.43 | 7,180 |   |  
            | 7/20/2007 | +1.80 / +4.41% | 41.00 | 42.60 | 41.00 | 42.60 | 42.60 | 3.43 | 9,600 |   |  			
            | 7/19/2007 | -0.20 / -0.49% | 41.00 | 41.00 | 40.60 | 40.80 | 40.80 | 3.29 | 4,360 |   |  
            | 7/18/2007 | -0.50 / -1.20% | 41.00 | 41.00 | 40.60 | 41.00 | 41.00 | 3.30 | 3,180 |   |  			
            | 7/17/2007 | +1.50 / +3.75% | 40.50 | 41.50 | 40.50 | 41.50 | 41.50 | 3.34 | 5,740 |   |  
            | 7/16/2007 | -2.00 / -4.76% | 41.00 | 41.00 | 40.00 | 40.00 | 40.00 | 3.22 | 3,570 |   |  			
            | 7/13/2007 | 0.00 / 0.00% | 42.00 | 42.00 | 42.00 | 42.00 | 42.00 | 3.38 | 30 |   |  
            | 7/12/2007 | -1.50 / -3.45% | 43.50 | 43.50 | 41.50 | 42.00 | 42.00 | 3.38 | 990 |   |  			
            | 7/11/2007 | -0.60 / -1.36% | 44.10 | 44.10 | 43.50 | 43.50 | 43.50 | 3.50 | 9,860 |   |  
            | 7/10/2007 | +2.10 / +5.00% | 44.00 | 44.10 | 44.00 | 44.10 | 44.10 | 3.55 | 3,480 |   |  			
            | 7/9/2007 | +2.00 / +5.00% | 42.00 | 42.00 | 42.00 | 42.00 | 42.00 | 3.38 | 1,520 |   |  
            | 7/6/2007 | 0.00 / 0.00% | 40.00 | 40.00 | 40.00 | 40.00 | 40.00 | 3.22 | 1,070 |   |  			
            | 7/5/2007 | 0.00 / 0.00% | 40.00 | 40.90 | 40.00 | 40.00 | 40.00 | 3.22 | 16,900 |   |  
            | 7/4/2007 | -0.70 / -1.72% | 40.20 | 40.20 | 40.00 | 40.00 | 40.00 | 3.22 | 26,340 |   |  			
            | 7/3/2007 | -2.10 / -4.91% | 42.50 | 42.50 | 40.70 | 40.70 | 40.70 | 3.28 | 3,810 |   |  
            | 7/2/2007 | -2.20 / -4.89% | 45.00 | 45.00 | 42.80 | 42.80 | 42.80 | 3.45 | 2,000 |   |  			
            | 6/29/2007 | +0.50 / +1.12% | 45.00 | 45.00 | 45.00 | 45.00 | 45.00 | 3.62 | 2,090 |   |  
            | 6/28/2007 | 0.00 / 0.00% | 44.50 | 44.50 | 44.50 | 44.50 | 44.50 | 3.58 | 2,510 |   |  			
            | 6/27/2007 | -0.50 / -1.11% | 45.00 | 46.00 | 44.50 | 44.50 | 44.50 | 3.58 | 5,300 |   |  
            | 6/26/2007 | -1.00 / -2.17% | 45.00 | 45.00 | 44.00 | 45.00 | 45.00 | 3.62 | 2,620 |   |  |