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                    Closing price on 7/10/2009
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        |           
                
                    | Open | 21.60 |  
                    | High | 21.60 |  
                    | Low | 20.00 |  
                    | Volume | 69,700 |  
                    | Split-adjusted Price | 14.99 |  
                
             | 
 |  XMC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 7/2/2009 | +0.90 / +4.69% | 19.20 | 20.10 | 19.20 | 20.10 | 19.67 | 14.70 | 26,200 |   |  
            | 7/1/2009 | -0.80 / -4.00% | 19.50 | 19.50 | 19.00 | 19.20 | 19.11 | 14.04 | 38,200 |   |  			
            | 6/30/2009 | -1.00 / -4.76% | 21.20 | 21.20 | 20.00 | 20.00 | 20.40 | 14.62 | 42,900 |   |  
            | 6/29/2009 | 0.00 / 0.00% | 21.00 | 21.50 | 21.00 | 21.00 | 21.29 | 15.35 | 21,500 |   |  			
            | 6/26/2009 | +0.20 / +0.93% | 22.00 | 22.40 | 21.20 | 21.80 | 21.63 | 15.94 | 28,000 |   |  
            | 6/25/2009 | +0.20 / +0.93% | 22.60 | 22.80 | 21.40 | 21.60 | 22.35 | 15.79 | 92,200 |   |  			
            | 6/24/2009 | +1.50 / +7.54% | 20.00 | 21.40 | 20.00 | 21.40 | 21.36 | 15.65 | 62,700 |   |  
            | 6/23/2009 | -1.20 / -5.69% | 19.90 | 20.50 | 19.90 | 19.90 | 19.96 | 14.55 | 88,000 |   |  			
            | 6/22/2009 | 0.00 / 0.00% | 22.00 | 22.10 | 21.10 | 21.10 | 21.29 | 15.43 | 37,200 |   |  
            | 6/19/2009 | +0.40 / +1.83% | 23.30 | 23.30 | 21.80 | 22.20 | 22.58 | 16.23 | 56,600 |   |  			
            | 6/18/2009 | -0.20 / -0.91% | 21.80 | 21.80 | 21.50 | 21.80 | 21.77 | 15.94 | 90,300 |   |  
            | 6/17/2009 | +0.50 / +2.33% | 20.00 | 22.60 | 20.00 | 22.00 | 20.38 | 16.08 | 197,200 |   |  			
            | 6/16/2009 | -1.50 / -6.52% | 21.50 | 22.00 | 21.50 | 21.50 | 21.50 | 15.72 | 40,400 |   |  
            | 6/15/2009 | 0.00 / 0.00% | 24.60 | 24.60 | 22.90 | 23.00 | 23.07 | 16.82 | 103,000 |   |  			
            | 6/12/2009 | -0.10 / -0.41% | 26.00 | 26.10 | 23.70 | 24.40 | 24.59 | 17.84 | 93,300 |   |  
            | 6/11/2009 | +0.50 / +2.08% | 23.00 | 24.90 | 23.00 | 24.50 | 24.41 | 17.91 | 125,900 |   |  			
            | 6/10/2009 | -1.70 / -6.61% | 27.20 | 27.40 | 24.00 | 24.00 | 24.29 | 17.55 | 220,000 |   |  
            | 6/9/2009 | +1.60 / +6.64% | 25.70 | 25.70 | 24.90 | 25.70 | 25.66 | 18.79 | 314,200 |   |  			
            | 6/8/2009 | 0.00 / 0.00% | 24.10 | 24.10 | 24.10 | 24.10 | 24.10 | 17.62 | 41,000 |   |  
            | 6/5/2009 | +1.60 / +7.62% | 22.60 | 22.60 | 22.60 | 22.60 | 22.60 | 16.52 | 65,500 |   |  			
            | 6/4/2009 | +0.60 / +2.94% | 20.10 | 21.60 | 20.10 | 21.00 | 21.21 | 15.35 | 117,700 |   |  
            | 6/3/2009 | +0.30 / +1.49% | 21.20 | 21.20 | 19.90 | 20.40 | 20.22 | 14.92 | 45,200 |   |  			
            | 6/2/2009 | +0.10 / +0.50% | 21.00 | 21.00 | 19.70 | 20.10 | 20.54 | 14.70 | 80,900 |   |  
            | 6/1/2009 | 0.00 / 0.00% | 18.50 | 20.00 | 18.50 | 20.00 | 19.73 | 14.62 | 36,200 |   |  |