| 
    
        
            | 
                    Closing price on 12/19/2007
                 |  |  
    
        |           
                
                    | Open | 117.50 |  
                    | High | 143.50 |  
                    | Low | 117.50 |  
                    | Volume | 10,800 |  
                    | Split-adjusted Price | 28.86 |  
                
             | 
 |  SD2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/19/2007 | +4.50 / +3.24% | 117.50 | 143.50 | 117.50 | 143.50 | 140.16 | 28.86 | 10,800 |   |  
            | 12/18/2007 | -4.80 / -3.34% | 130.00 | 144.00 | 129.80 | 139.00 | 130.49 | 27.95 | 42,200 |   |  			
            | 12/17/2007 | -15.20 / -9.56% | 143.80 | 153.00 | 143.80 | 143.80 | 144.16 | 28.92 | 41,400 |   |  
            | 12/14/2007 | -0.50 / -0.31% | 160.00 | 162.00 | 158.80 | 159.00 | 159.69 | 31.98 | 21,500 |   |  			
            | 12/13/2007 | -3.50 / -2.15% | 164.00 | 164.00 | 159.50 | 159.50 | 160.94 | 32.08 | 12,700 |   |  
            | 12/12/2007 | -1.00 / -0.61% | 162.00 | 169.90 | 160.00 | 163.00 | 166.07 | 32.78 | 28,300 |   |  			
            | 12/11/2007 | -6.00 / -3.53% | 166.50 | 167.00 | 160.00 | 164.00 | 163.11 | 32.98 | 23,100 |   |  
            | 12/10/2007 | -4.00 / -2.30% | 174.00 | 174.00 | 166.50 | 170.00 | 168.50 | 34.19 | 16,900 |   |  			
            | 12/7/2007 | +1.00 / +0.58% | 174.00 | 175.00 | 170.00 | 174.00 | 173.07 | 34.99 | 22,800 |   |  
            | 12/6/2007 | +3.00 / +1.76% | 176.00 | 176.00 | 158.00 | 173.00 | 167.85 | 34.79 | 33,200 |   |  			
            | 12/5/2007 | -1.30 / -0.76% | 180.00 | 180.00 | 155.00 | 170.00 | 165.79 | 34.19 | 32,700 |   |  
            | 12/4/2007 | +14.30 / +9.11% | 157.00 | 171.30 | 156.00 | 171.30 | 165.53 | 34.45 | 72,200 |   |  			
            | 12/3/2007 | 0.00 / 0.00% | 158.10 | 160.00 | 151.10 | 157.00 | 155.84 | 31.57 | 24,600 |   |  
            | 3/12/2007 | +157.00 / +0.00% | 158.10 | 160.00 | 151.10 | 157.00 | 157.00 | 31.57 | 24,600 |   |  |