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                    Closing price on 9/14/2007
                 |  |  
    
        |           
                
                    | Open | 43.00 |  
                    | High | 43.00 |  
                    | Low | 42.00 |  
                    | Volume | 1,010 |  
                    | Split-adjusted Price | 3.45 |  
                
             | 
 |  SDN Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/14/2007 | -0.20 / -0.47% | 43.00 | 43.00 | 42.00 | 42.80 | 42.80 | 3.45 | 1,010 |   |  
            | 9/13/2007 | -1.00 / -2.27% | 42.20 | 43.00 | 42.00 | 43.00 | 43.00 | 3.46 | 7,120 |   |  			
            | 9/12/2007 | +1.00 / +2.33% | 44.50 | 44.50 | 44.00 | 44.00 | 44.00 | 3.54 | 5,020 |   |  
            | 9/11/2007 | +1.00 / +2.38% | 41.40 | 43.00 | 41.40 | 43.00 | 43.00 | 3.46 | 13,070 |   |  			
            | 9/10/2007 | -0.50 / -1.18% | 41.60 | 42.00 | 41.60 | 42.00 | 42.00 | 3.38 | 4,980 |   |  
            | 9/7/2007 | -0.30 / -0.70% | 42.70 | 43.00 | 41.00 | 42.50 | 42.50 | 3.42 | 3,900 |   |  			
            | 9/6/2007 | -1.20 / -2.73% | 43.00 | 43.00 | 42.60 | 42.80 | 42.80 | 3.45 | 8,960 |   |  
            | 9/5/2007 | -2.30 / -4.97% | 46.30 | 46.30 | 44.00 | 44.00 | 44.00 | 3.54 | 13,550 |   |  			
            | 9/4/2007 | +2.20 / +4.99% | 46.30 | 46.30 | 45.00 | 46.30 | 46.30 | 3.73 | 31,130 |   |  
            | 8/31/2007 | +2.10 / +5.00% | 44.10 | 44.10 | 44.10 | 44.10 | 44.10 | 3.55 | 12,640 |   |  			
            | 8/30/2007 | +2.00 / +5.00% | 40.50 | 42.00 | 40.50 | 42.00 | 42.00 | 3.38 | 6,480 |   |  
            | 8/29/2007 | -1.00 / -2.44% | 43.00 | 43.00 | 40.00 | 40.00 | 40.00 | 3.22 | 21,890 |   |  			
            | 8/28/2007 | +1.90 / +4.86% | 41.00 | 41.00 | 41.00 | 41.00 | 41.00 | 3.30 | 20,290 |   |  
            | 8/27/2007 | +1.80 / +4.83% | 39.00 | 39.10 | 38.00 | 39.10 | 39.10 | 3.15 | 11,470 |   |  			
            | 8/24/2007 | +0.70 / +1.91% | 37.00 | 37.50 | 37.00 | 37.30 | 37.30 | 3.00 | 2,380 |   |  
            | 8/23/2007 | +0.60 / +1.67% | 36.70 | 36.70 | 36.00 | 36.60 | 36.60 | 2.95 | 500 |   |  			
            | 8/22/2007 | -0.70 / -1.91% | 36.70 | 36.70 | 36.00 | 36.00 | 36.00 | 2.90 | 3,430 |   |  
            | 8/21/2007 | +0.10 / +0.27% | 36.70 | 36.70 | 36.70 | 36.70 | 36.70 | 2.96 | 3,990 |   |  			
            | 8/20/2007 | -0.50 / -1.35% | 36.00 | 36.60 | 36.00 | 36.60 | 36.60 | 2.95 | 3,160 |   |  
            | 8/17/2007 | +0.40 / +1.09% | 37.00 | 37.10 | 37.00 | 37.10 | 37.10 | 2.99 | 3,000 |   |  			
            | 8/16/2007 | -0.70 / -1.87% | 37.40 | 37.50 | 36.10 | 36.70 | 36.70 | 2.96 | 1,580 |   |  
            | 8/15/2007 | -1.40 / -3.61% | 37.40 | 37.40 | 37.40 | 37.40 | 37.40 | 3.01 | 2,000 |   |  			
            | 8/14/2007 | +1.50 / +4.02% | 38.90 | 38.90 | 38.80 | 38.80 | 38.80 | 3.12 | 530 |   |  
            | 8/13/2007 | -1.70 / -4.36% | 37.20 | 37.50 | 37.20 | 37.30 | 37.30 | 3.00 | 3,100 |   |  			
            | 8/10/2007 | 0.00 / 0.00% | 39.00 | 39.20 | 39.00 | 39.00 | 39.00 | 3.14 | 2,300 |   |  
            | 8/9/2007 | +1.80 / +4.84% | 37.50 | 39.00 | 37.50 | 39.00 | 39.00 | 3.14 | 4,700 |   |  			
            | 8/8/2007 | -1.40 / -3.63% | 37.20 | 37.20 | 37.20 | 37.20 | 37.20 | 3.00 | 1,960 |   |  
            | 8/7/2007 | 0.00 / 0.00% | 38.60 | 38.80 | 38.20 | 38.60 | 38.60 | 3.11 | 2,900 |   |  			
            | 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 |   |  |