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                    Closing price on 6/21/2012
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                    | Open | 7.70 |  
                    | High | 7.70 |  
                    | Low | 7.70 |  
                    | Volume | 200 |  
                    | Split-adjusted Price | 5.63 |  
                
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 |  XMC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/21/2012 | 0.00 / 0.00% | 7.70 | 7.70 | 7.70 | 7.70 | 7.70 | 5.63 | 200 |   |  
            | 6/20/2012 | +0.20 / +2.67% | 7.50 | 7.70 | 7.50 | 7.70 | 7.59 | 5.63 | 1,800 |   |  			
            | 6/19/2012 | -0.50 / -6.25% | 7.70 | 7.70 | 7.50 | 7.50 | 7.53 | 5.48 | 38,600 |   |  
            | 6/18/2012 | 0.00 / 0.00% | 7.70 | 8.00 | 7.60 | 8.00 | 7.64 | 5.85 | 1,800 |   |  			
            | 6/15/2012 | +0.10 / +1.28% | 7.60 | 7.90 | 7.50 | 7.90 | 7.58 | 5.78 | 5,100 |   |  
            | 6/14/2012 | -0.10 / -1.27% | 8.00 | 8.00 | 7.80 | 7.80 | 7.97 | 5.70 | 700 |   |  			
            | 6/13/2012 | +0.20 / +2.60% | 7.90 | 7.90 | 7.60 | 7.90 | 7.73 | 5.78 | 12,300 |   |  
            | 6/12/2012 | -0.20 / -2.53% | 7.60 | 7.70 | 7.50 | 7.70 | 7.63 | 5.63 | 5,800 |   |  			
            | 6/11/2012 | 0.00 / 0.00% | 8.00 | 8.00 | 7.70 | 7.90 | 7.82 | 5.78 | 7,000 |   |  
            | 6/8/2012 | -0.40 / -4.94% | 8.00 | 8.00 | 7.70 | 7.70 | 7.86 | 5.63 | 6,500 |   |  			
            | 6/7/2012 | +0.50 / +6.58% | 7.70 | 8.10 | 7.70 | 8.10 | 8.05 | 5.92 | 13,400 |   |  
            | 6/6/2012 | +0.10 / +1.33% | 7.60 | 7.60 | 7.20 | 7.60 | 7.37 | 5.56 | 7,400 |   |  			
            | 6/5/2012 | +0.10 / +1.35% | 7.40 | 7.50 | 7.10 | 7.50 | 7.27 | 5.48 | 12,300 |   |  
            | 6/4/2012 | 0.00 / 0.00% | 7.50 | 7.50 | 7.40 | 7.40 | 7.41 | 5.41 | 41,000 |   |  			
            | 6/1/2012 | +0.20 / +2.60% | 7.80 | 7.90 | 7.80 | 7.90 | 7.88 | 5.78 | 400 |   |  
            | 5/31/2012 | -0.10 / -1.28% | 7.80 | 7.90 | 7.70 | 7.70 | 7.77 | 5.63 | 14,100 |   |  			
            | 5/30/2012 | 0.00 / 0.00% | 7.80 | 7.90 | 7.80 | 7.80 | 7.86 | 5.70 | 2,000 |   |  
            | 5/29/2012 | -0.20 / -2.50% | 7.80 | 7.90 | 7.80 | 7.80 | 7.83 | 5.70 | 4,100 |   |  			
            | 5/28/2012 | 0.00 / 0.00% | 8.40 | 8.50 | 8.00 | 8.00 | 8.31 | 5.85 | 7,700 |   |  
            | 5/25/2012 | +0.50 / +6.41% | 8.00 | 8.30 | 7.90 | 8.30 | 8.23 | 6.07 | 8,500 |   |  			
            | 5/24/2012 | -0.50 / -6.02% | 8.00 | 8.00 | 7.80 | 7.80 | 7.87 | 5.70 | 22,200 |   |  
            | 5/23/2012 | -0.50 / -5.68% | 8.80 | 8.80 | 8.30 | 8.30 | 8.34 | 6.07 | 62,300 |   |  			
            | 5/22/2012 | -0.50 / -5.38% | 9.10 | 9.10 | 8.80 | 8.80 | 8.92 | 6.43 | 8,900 |   |  
            | 5/21/2012 | 0.00 / 0.00% | 9.00 | 9.40 | 8.80 | 9.30 | 9.14 | 6.80 | 20,000 |   |  			
            | 5/18/2012 | -0.50 / -5.38% | 9.00 | 9.00 | 8.70 | 8.80 | 8.86 | 6.43 | 51,000 |   |  
            | 5/17/2012 | -0.20 / -2.11% | 9.20 | 9.30 | 9.00 | 9.30 | 9.14 | 6.80 | 32,800 |   |  			
            | 5/16/2012 | -0.10 / -1.04% | 9.60 | 9.60 | 9.20 | 9.50 | 9.35 | 6.95 | 25,700 |   |  
            | 5/15/2012 | -0.10 / -1.03% | 9.50 | 9.80 | 9.50 | 9.60 | 9.64 | 7.02 | 23,400 |   |  			
            | 5/14/2012 | 0.00 / 0.00% | 10.10 | 10.10 | 9.50 | 9.70 | 9.82 | 7.09 | 42,600 |   |  
            | 5/11/2012 | +0.10 / +0.99% | 10.10 | 10.20 | 10.10 | 10.20 | 10.14 | 7.46 | 89,700 |   |  |