| 
                 
                    Closing price on 12/9/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.70 | 
                 
                
                    | High | 
                    12.30 | 
                 
                
                    | Low | 
                    11.60 | 
                     
                
                    | Volume | 
                    12,600 | 
                                 
                
                    | Split-adjusted Price | 
                    8.99 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
XMC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/9/2008
             | 
            
                +0.70 / +6.03%
             |             
            
                11.70
             |           
            
                12.30
             |               
            
                11.60
             |                           
            
                12.30
             | 
            
                11.99
             |                     
            
                8.99
             |                                 
            
                12,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2008
             | 
            
                0.00 / 0.00%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                11.50
             |                           
            
                11.60
             | 
            
                11.69
             |                     
            
                8.48
             |                                 
            
                41,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/5/2008
             | 
            
                -0.60 / -4.65%
             |             
            
                12.40
             |           
            
                12.50
             |               
            
                12.20
             |                           
            
                12.30
             | 
            
                12.35
             |                     
            
                8.99
             |                                 
            
                8,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/4/2008
             | 
            
                +0.20 / +1.57%
             |             
            
                12.80
             |           
            
                12.90
             |               
            
                12.80
             |                           
            
                12.90
             | 
            
                12.87
             |                     
            
                9.43
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/3/2008
             | 
            
                +0.10 / +0.79%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.60
             |                           
            
                12.70
             | 
            
                12.72
             |                     
            
                9.29
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2008
             | 
            
                -0.40 / -3.08%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.76
             |                     
            
                9.21
             |                                 
            
                7,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.29
             |                     
            
                9.50
             |                                 
            
                16,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2008
             | 
            
                +0.80 / +6.40%
             |             
            
                13.00
             |           
            
                13.30
             |               
            
                13.00
             |                           
            
                13.30
             | 
            
                13.20
             |                     
            
                9.72
             |                                 
            
                21,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2008
             | 
            
                -0.10 / -0.79%
             |             
            
                12.60
             |           
            
                12.70
             |               
            
                12.40
             |                           
            
                12.50
             | 
            
                12.53
             |                     
            
                9.14
             |                                 
            
                18,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2008
             | 
            
                -0.30 / -2.33%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.64
             |                     
            
                9.21
             |                                 
            
                18,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2008
             | 
            
                +0.10 / +0.78%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                12.80
             |                           
            
                12.90
             | 
            
                13.24
             |                     
            
                9.43
             |                                 
            
                27,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.10
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.86
             |                     
            
                9.36
             |                                 
            
                30,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/21/2008
             | 
            
                -0.40 / -3.03%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.60
             |                           
            
                12.80
             | 
            
                12.76
             |                     
            
                9.36
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2008
             | 
            
                -0.30 / -2.22%
             |             
            
                13.20
             |           
            
                13.30
             |               
            
                13.00
             |                           
            
                13.20
             | 
            
                13.15
             |                     
            
                9.65
             |                                 
            
                29,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.53
             |                     
            
                9.87
             |                                 
            
                16,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2008
             | 
            
                -0.20 / -1.46%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.50
             | 
            
                13.45
             |                     
            
                9.87
             |                                 
            
                49,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.60
             |           
            
                13.80
             |               
            
                13.60
             |                           
            
                13.70
             | 
            
                13.71
             |                     
            
                10.02
             |                                 
            
                11,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/14/2008
             | 
            
                +0.40 / +2.94%
             |             
            
                14.30
             |           
            
                14.40
             |               
            
                13.90
             |                           
            
                14.00
             | 
            
                14.06
             |                     
            
                10.24
             |                                 
            
                22,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2008
             | 
            
                -0.20 / -1.45%
             |             
            
                13.20
             |           
            
                14.00
             |               
            
                13.20
             |                           
            
                13.60
             | 
            
                13.69
             |                     
            
                9.94
             |                                 
            
                16,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2008
             | 
            
                +0.20 / +1.47%
             |             
            
                13.00
             |           
            
                13.80
             |               
            
                13.00
             |                           
            
                13.80
             | 
            
                13.61
             |                     
            
                10.09
             |                                 
            
                7,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2008
             | 
            
                -0.40 / -2.86%
             |             
            
                13.60
             |           
            
                14.00
             |               
            
                13.40
             |                           
            
                13.60
             | 
            
                13.47
             |                     
            
                9.94
             |                                 
            
                45,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2008
             | 
            
                0.00 / 0.00%
             |             
            
                14.20
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.17
             |                     
            
                10.24
             |                                 
            
                61,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/7/2008
             | 
            
                -0.70 / -4.79%
             |             
            
                14.00
             |           
            
                14.20
             |               
            
                13.80
             |                           
            
                13.90
             | 
            
                13.96
             |                     
            
                10.16
             |                                 
            
                36,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2008
             | 
            
                -0.50 / -3.31%
             |             
            
                14.90
             |           
            
                15.10
             |               
            
                14.20
             |                           
            
                14.60
             | 
            
                14.80
             |                     
            
                10.67
             |                                 
            
                43,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2008
             | 
            
                +0.50 / +3.42%
             |             
            
                15.10
             |           
            
                15.10
             |               
            
                15.10
             |                           
            
                15.10
             | 
            
                15.10
             |                     
            
                11.04
             |                                 
            
                48,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2008
             | 
            
                +0.90 / +6.57%
             |             
            
                13.80
             |           
            
                14.60
             |               
            
                13.50
             |                           
            
                14.60
             | 
            
                14.20
             |                     
            
                10.67
             |                                 
            
                77,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2008
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                14.10
             |               
            
                13.40
             |                           
            
                13.70
             | 
            
                13.71
             |                     
            
                10.02
             |                                 
            
                40,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2008
             | 
            
                -1.20 / -8.11%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.99
             |                     
            
                9.94
             |                                 
            
                95,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2008
             | 
            
                +0.10 / +0.68%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                14.00
             |                           
            
                14.80
             | 
            
                14.59
             |                     
            
                10.82
             |                                 
            
                17,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2008
             | 
            
                +0.60 / +4.26%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                14.00
             |                           
            
                14.70
             | 
            
                14.59
             |                     
            
                10.75
             |                                 
            
                74,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |