| 
                 
                    Closing price on 3/27/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.90 | 
                 
                
                    | High | 
                    13.30 | 
                 
                
                    | Low | 
                    12.60 | 
                     
                
                    | Volume | 
                    113,200 | 
                                 
                
                    | Split-adjusted Price | 
                    9.65 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
XMC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2009
             | 
            
                +0.70 / +6.93%
             |             
            
                10.60
             |           
            
                10.80
             |               
            
                10.60
             |                           
            
                10.80
             | 
            
                10.77
             |                     
            
                7.90
             |                                 
            
                7,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2009
             | 
            
                -0.40 / -3.81%
             |             
            
                10.10
             |           
            
                10.30
             |               
            
                10.00
             |                           
            
                10.10
             | 
            
                10.13
             |                     
            
                7.38
             |                                 
            
                26,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2009
             | 
            
                0.00 / 0.00%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.50
             |                           
            
                10.50
             | 
            
                10.74
             |                     
            
                7.68
             |                                 
            
                20,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2009
             | 
            
                -1.90 / -14.39%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                10.90
             |                           
            
                11.30
             | 
            
                11.23
             |                     
            
                8.26
             |                                 
            
                14,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2009
             | 
            
                +0.20 / +1.54%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.80
             |                           
            
                13.20
             | 
            
                13.03
             |                     
            
                9.65
             |                                 
            
                25,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2009
             | 
            
                -0.10 / -0.76%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.80
             |                           
            
                13.00
             | 
            
                12.96
             |                     
            
                9.50
             |                                 
            
                19,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2009
             | 
            
                -0.20 / -1.50%
             |             
            
                13.10
             |           
            
                13.20
             |               
            
                12.80
             |                           
            
                13.10
             | 
            
                13.03
             |                     
            
                9.58
             |                                 
            
                47,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2009
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.30
             | 
            
                13.33
             |                     
            
                9.72
             |                                 
            
                38,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |