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                    Closing price on 4/9/2009
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                    | Open | 15.20 |  
                    | High | 15.20 |  
                    | Low | 14.10 |  
                    | Volume | 80,900 |  
                    | Split-adjusted Price | 10.67 |  
                
             | 
 |  XMC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/9/2009 | -0.20 / -1.35% | 15.20 | 15.20 | 14.10 | 14.60 | 14.54 | 10.67 | 80,900 |   |  
            | 4/8/2009 | -1.20 / -7.50% | 16.00 | 16.10 | 14.80 | 14.80 | 15.10 | 10.82 | 86,900 |   |  			
            | 4/7/2009 | 0.00 / 0.00% | 16.00 | 16.00 | 15.20 | 16.00 | 15.88 | 11.70 | 56,600 |   |  
            | 4/3/2009 | +0.70 / +4.90% | 14.00 | 15.00 | 14.00 | 15.00 | 14.98 | 10.97 | 96,500 |   |  			
            | 4/2/2009 | +0.70 / +5.15% | 14.00 | 14.30 | 13.60 | 14.30 | 14.12 | 10.46 | 112,400 |   |  
            | 4/1/2009 | +0.20 / +1.49% | 13.50 | 13.70 | 13.10 | 13.60 | 13.42 | 9.94 | 38,800 |   |  			
            | 3/31/2009 | -0.40 / -2.90% | 13.10 | 13.40 | 12.50 | 13.40 | 12.86 | 9.80 | 41,900 |   |  
            | 3/30/2009 | 0.00 / 0.00% | 13.00 | 14.00 | 12.80 | 13.80 | 13.26 | 10.09 | 29,900 |   |  			
            | 3/27/2009 | +0.70 / +5.60% | 12.90 | 13.30 | 12.60 | 13.20 | 13.15 | 9.65 | 113,200 |   |  
            | 3/26/2009 | 0.00 / 0.00% | 12.50 | 12.80 | 12.40 | 12.50 | 12.47 | 9.14 | 28,100 |   |  			
            | 3/25/2009 | -0.20 / -1.57% | 12.60 | 12.60 | 12.40 | 12.50 | 12.54 | 9.14 | 37,700 |   |  
            | 3/24/2009 | +0.70 / +5.83% | 12.60 | 12.70 | 12.40 | 12.70 | 12.59 | 9.29 | 23,200 |   |  			
            | 3/23/2009 | 0.00 / 0.00% | 12.20 | 12.30 | 12.00 | 12.00 | 12.12 | 8.77 | 33,700 |   |  
            | 3/20/2009 | -0.20 / -1.61% | 12.10 | 12.50 | 12.10 | 12.20 | 12.21 | 8.92 | 12,800 |   |  			
            | 3/19/2009 | -0.30 / -2.36% | 12.90 | 12.90 | 11.90 | 12.40 | 12.19 | 9.07 | 12,500 |   |  
            | 3/18/2009 | +0.60 / +4.96% | 12.70 | 12.70 | 12.50 | 12.70 | 12.69 | 9.29 | 78,300 |   |  			
            | 3/17/2009 | +0.50 / +4.31% | 11.70 | 12.30 | 11.50 | 12.10 | 11.87 | 8.85 | 29,000 |   |  
            | 3/16/2009 | 0.00 / 0.00% | 11.20 | 11.80 | 11.20 | 11.60 | 11.55 | 8.48 | 17,800 |   |  			
            | 3/13/2009 | 0.00 / 0.00% | 11.70 | 11.70 | 11.50 | 11.50 | 11.58 | 8.41 | 8,900 |   |  
            | 3/12/2009 | -0.40 / -3.36% | 11.60 | 11.80 | 11.50 | 11.50 | 11.59 | 8.41 | 12,100 |   |  			
            | 3/11/2009 | +0.40 / +3.48% | 11.80 | 12.10 | 11.80 | 11.90 | 12.03 | 8.70 | 49,100 |   |  
            | 3/10/2009 | +0.10 / +0.88% | 11.00 | 11.60 | 11.00 | 11.50 | 11.43 | 8.41 | 14,400 |   |  			
            | 3/9/2009 | 0.00 / 0.00% | 11.30 | 11.50 | 11.30 | 11.40 | 11.36 | 8.33 | 15,400 |   |  
            | 3/6/2009 | 0.00 / 0.00% | 11.00 | 11.10 | 10.90 | 11.10 | 11.05 | 8.12 | 8,600 |   |  			
            | 3/5/2009 | 0.00 / 0.00% | 11.20 | 11.60 | 11.00 | 11.10 | 11.13 | 8.12 | 8,200 |   |  
            | 3/4/2009 | +0.20 / +1.83% | 10.80 | 11.10 | 10.80 | 11.10 | 10.97 | 8.12 | 13,000 |   |  			
            | 3/3/2009 | 0.00 / 0.00% | 10.90 | 10.90 | 10.80 | 10.90 | 10.83 | 7.97 | 4,000 |   |  
            | 3/2/2009 | 0.00 / 0.00% | 11.00 | 11.00 | 10.80 | 10.90 | 10.89 | 7.97 | 7,000 |   |  			
            | 2/27/2009 | +0.10 / +0.91% | 10.80 | 11.20 | 10.50 | 11.10 | 11.02 | 8.12 | 21,400 |   |  
            | 2/26/2009 | +0.20 / +1.85% | 10.90 | 11.00 | 10.90 | 11.00 | 10.96 | 8.04 | 9,900 |   |  |