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                    Closing price on 12/23/2009
                 |  |  
    
        |           
                
                    | Open | 33.30 |  
                    | High | 36.50 |  
                    | Low | 32.00 |  
                    | Volume | 187,100 |  
                    | Split-adjusted Price | 15.99 |  
                
             | 
 |  SDA Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/23/2009 | +3.20 / +9.76% | 33.30 | 36.50 | 32.00 | 36.00 | 36.00 | 15.99 | 187,100 |   |  
            | 12/22/2009 | +0.10 / +0.31% | 34.80 | 34.90 | 32.50 | 32.80 | 32.80 | 14.57 | 107,300 |   |  			
            | 12/21/2009 | +1.90 / +6.17% | 32.50 | 32.70 | 32.00 | 32.70 | 32.70 | 14.52 | 46,900 |   |  
            | 12/18/2009 | +2.00 / +6.94% | 29.00 | 30.80 | 29.00 | 30.80 | 30.80 | 13.68 | 83,900 |   |  			
            | 12/17/2009 | -1.80 / -5.88% | 28.90 | 29.90 | 28.80 | 28.80 | 28.80 | 12.79 | 97,200 |   |  
            | 12/16/2009 | -1.40 / -4.38% | 33.00 | 33.00 | 30.60 | 30.60 | 30.60 | 13.59 | 20,800 |   |  			
            | 12/15/2009 | -2.00 / -5.88% | 34.20 | 34.20 | 32.00 | 32.00 | 32.00 | 14.21 | 29,900 |   |  
            | 12/14/2009 | +2.10 / +6.58% | 30.00 | 34.10 | 30.00 | 34.00 | 34.00 | 15.10 | 64,500 |   |  			
            | 12/11/2009 | -1.60 / -4.78% | 33.00 | 33.00 | 31.90 | 31.90 | 31.90 | 14.17 | 47,600 |   |  
            | 12/10/2009 | -2.30 / -6.42% | 35.00 | 36.00 | 33.30 | 33.50 | 33.50 | 14.88 | 59,400 |   |  			
            | 12/9/2009 | -2.00 / -5.29% | 36.00 | 36.20 | 35.80 | 35.80 | 35.80 | 15.90 | 48,500 |   |  
            | 12/8/2009 | -2.80 / -6.90% | 40.50 | 40.50 | 37.80 | 37.80 | 37.80 | 16.79 | 72,100 |   |  			
            | 12/7/2009 | +0.10 / +0.25% | 41.00 | 41.00 | 39.80 | 40.60 | 40.60 | 18.03 | 51,300 |   |  
            | 12/4/2009 | +0.30 / +0.75% | 41.50 | 41.50 | 40.00 | 40.50 | 40.50 | 17.99 | 29,300 |   |  			
            | 12/3/2009 | +0.40 / +1.01% | 39.10 | 41.00 | 39.00 | 40.20 | 40.20 | 17.85 | 85,900 |   |  
            | 12/2/2009 | -2.50 / -5.91% | 43.00 | 43.00 | 39.50 | 39.80 | 39.80 | 17.68 | 92,500 |   |  			
            | 12/1/2009 | +1.80 / +4.44% | 41.50 | 42.30 | 41.50 | 42.30 | 42.30 | 18.79 | 127,100 |   |  
            | 11/30/2009 | +2.60 / +6.86% | 37.10 | 40.50 | 37.10 | 40.50 | 40.50 | 17.99 | 61,000 |   |  			
            | 11/27/2009 | -1.70 / -4.29% | 37.00 | 41.90 | 37.00 | 37.90 | 37.90 | 16.83 | 215,300 |   |  
            | 11/26/2009 | -2.30 / -5.49% | 39.60 | 40.00 | 39.60 | 39.60 | 39.60 | 17.59 | 32,500 |   |  			
            | 11/25/2009 | -2.60 / -5.84% | 43.10 | 44.90 | 41.90 | 41.90 | 41.90 | 18.61 | 108,100 |   |  
            | 11/24/2009 | -2.50 / -5.32% | 47.00 | 47.90 | 44.30 | 44.50 | 44.50 | 19.76 | 108,900 |   |  			
            | 11/23/2009 | -3.00 / -6.00% | 50.50 | 50.50 | 47.00 | 47.00 | 47.00 | 20.87 | 106,100 |   |  
            | 11/20/2009 | -1.10 / -2.15% | 50.50 | 51.80 | 49.30 | 50.00 | 50.00 | 22.21 | 98,700 |   |  			
            | 11/19/2009 | -0.20 / -0.39% | 51.90 | 52.40 | 50.50 | 51.10 | 51.10 | 22.69 | 170,200 |   |  
            | 11/18/2009 | -0.20 / -0.39% | 51.00 | 52.00 | 48.40 | 51.30 | 51.30 | 22.78 | 198,300 |   |  			
            | 11/17/2009 | +0.90 / +1.78% | 53.70 | 53.90 | 50.60 | 51.50 | 51.50 | 22.87 | 169,600 |   |  
            | 11/16/2009 | +1.90 / +3.90% | 48.60 | 50.60 | 48.50 | 50.60 | 50.60 | 22.47 | 219,400 |   |  			
            | 11/13/2009 | +2.60 / +5.64% | 43.00 | 48.70 | 43.00 | 48.70 | 48.70 | 21.63 | 224,200 |   |  
            | 11/12/2009 | +1.60 / +3.60% | 45.80 | 46.10 | 44.00 | 46.10 | 46.10 | 20.47 | 144,500 |   |  |