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                    Closing price on 8/13/2009
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                    | Open | 22.80 |  
                    | High | 22.80 |  
                    | Low | 22.00 |  
                    | Volume | 36,600 |  
                    | Split-adjusted Price | 16.08 |  
                
             | 
 |  XMC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/13/2009 | -0.10 / -0.45% | 22.80 | 22.80 | 22.00 | 22.00 | 22.20 | 16.08 | 36,600 |   |  
            | 8/12/2009 | +0.20 / +0.91% | 22.50 | 22.50 | 21.80 | 22.10 | 22.04 | 16.16 | 39,800 |   |  			
            | 8/11/2009 | +0.30 / +1.39% | 21.50 | 22.20 | 21.40 | 21.90 | 21.73 | 16.01 | 45,200 |   |  
            | 8/10/2009 | 0.00 / 0.00% | 21.50 | 21.80 | 21.50 | 21.60 | 21.60 | 15.79 | 33,300 |   |  			
            | 8/7/2009 | +0.20 / +0.94% | 21.10 | 21.50 | 21.10 | 21.50 | 21.41 | 15.72 | 28,800 |   |  
            | 8/6/2009 | -0.20 / -0.93% | 21.50 | 22.00 | 21.00 | 21.30 | 21.50 | 15.57 | 25,800 |   |  			
            | 8/5/2009 | 0.00 / 0.00% | 21.10 | 22.00 | 21.10 | 21.50 | 21.59 | 15.72 | 10,700 |   |  
            | 8/4/2009 | +0.30 / +1.42% | 21.80 | 21.80 | 21.30 | 21.50 | 21.51 | 15.72 | 16,500 |   |  			
            | 8/3/2009 | 0.00 / 0.00% | 21.50 | 21.50 | 21.20 | 21.20 | 21.33 | 15.50 | 9,000 |   |  
            | 7/31/2009 | +1.00 / +4.76% | 22.00 | 22.00 | 21.70 | 22.00 | 21.90 | 16.08 | 23,000 |   |  			
            | 7/30/2009 | -0.70 / -3.23% | 21.00 | 22.00 | 20.50 | 21.00 | 21.08 | 15.35 | 16,800 |   |  
            | 7/29/2009 | +0.10 / +0.46% | 22.50 | 22.50 | 21.50 | 21.70 | 21.96 | 15.87 | 29,400 |   |  			
            | 7/28/2009 | -1.00 / -4.42% | 23.00 | 23.00 | 21.40 | 21.60 | 22.16 | 15.79 | 47,900 |   |  
            | 7/27/2009 | 0.00 / 0.00% | 24.00 | 24.00 | 22.00 | 22.60 | 22.95 | 16.52 | 60,100 |   |  			
            | 7/24/2009 | +1.00 / +4.65% | 22.40 | 22.50 | 22.40 | 22.50 | 22.49 | 16.45 | 77,200 |   |  
            | 7/23/2009 | +1.30 / +6.44% | 20.20 | 21.50 | 20.20 | 21.50 | 21.12 | 15.72 | 29,500 |   |  			
            | 7/22/2009 | 0.00 / 0.00% | 20.50 | 20.50 | 20.10 | 20.20 | 20.24 | 14.77 | 6,700 |   |  
            | 7/21/2009 | +0.20 / +1.00% | 20.20 | 20.20 | 19.60 | 20.20 | 20.06 | 14.77 | 25,100 |   |  			
            | 7/20/2009 | 0.00 / 0.00% | 20.60 | 20.60 | 19.60 | 20.00 | 20.07 | 14.62 | 16,900 |   |  
            | 7/17/2009 | -0.60 / -2.84% | 20.80 | 20.80 | 20.50 | 20.50 | 20.60 | 14.99 | 3,300 |   |  			
            | 7/16/2009 | +1.10 / +5.50% | 21.00 | 21.10 | 20.80 | 21.10 | 21.01 | 15.43 | 53,600 |   |  
            | 7/15/2009 | +0.80 / +4.17% | 19.90 | 20.00 | 19.70 | 20.00 | 19.83 | 14.62 | 13,300 |   |  			
            | 7/14/2009 | -0.60 / -3.03% | 19.30 | 19.80 | 19.00 | 19.20 | 19.26 | 14.04 | 19,400 |   |  
            | 7/13/2009 | 0.00 / 0.00% | 20.10 | 20.10 | 19.50 | 19.80 | 19.76 | 14.48 | 14,700 |   |  			
            | 7/10/2009 | -0.60 / -2.84% | 21.60 | 21.60 | 20.00 | 20.50 | 20.33 | 14.99 | 69,700 |   |  
            | 7/9/2009 | +1.00 / +4.98% | 21.50 | 21.50 | 20.70 | 21.10 | 21.10 | 15.43 | 53,200 |   |  			
            | 7/8/2009 | -0.30 / -1.47% | 20.80 | 20.80 | 20.00 | 20.10 | 20.56 | 14.70 | 11,300 |   |  
            | 7/7/2009 | -0.70 / -3.32% | 22.00 | 22.00 | 20.40 | 20.40 | 20.83 | 14.92 | 8,700 |   |  			
            | 7/6/2009 | 0.00 / 0.00% | 20.10 | 21.10 | 20.10 | 21.10 | 21.00 | 15.43 | 31,800 |   |  
            | 7/3/2009 | -0.10 / -0.50% | 19.00 | 20.00 | 19.00 | 20.00 | 19.76 | 14.62 | 22,600 |   |  |