| 
                 
                    Closing price on 2/15/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    49.00 | 
                 
                
                    | High | 
                    49.60 | 
                 
                
                    | Low | 
                    48.00 | 
                     
                
                    | Volume | 
                    8,200 | 
                                 
                
                    | Split-adjusted Price | 
                    39.15 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MEC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/15/2008
             | 
            
                +0.10 / +0.20%
             |             
            
                49.00
             |           
            
                49.60
             |               
            
                48.00
             |                           
            
                49.10
             | 
            
                48.82
             |                     
            
                39.15
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2008
             | 
            
                -0.50 / -1.01%
             |             
            
                51.00
             |           
            
                52.00
             |               
            
                49.00
             |                           
            
                49.00
             | 
            
                50.69
             |                     
            
                39.07
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2008
             | 
            
                -2.40 / -4.62%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                48.50
             |                           
            
                49.50
             | 
            
                49.32
             |                     
            
                39.47
             |                                 
            
                14,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2008
             | 
            
                -2.60 / -4.77%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                50.00
             |                           
            
                51.90
             | 
            
                52.45
             |                     
            
                41.38
             |                                 
            
                13,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2008
             | 
            
                -0.10 / -0.18%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                53.00
             |                           
            
                54.50
             | 
            
                54.15
             |                     
            
                43.45
             |                                 
            
                29,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2008
             | 
            
                -0.10 / -0.18%
             |             
            
                55.00
             |           
            
                55.40
             |               
            
                49.90
             |                           
            
                54.60
             | 
            
                53.25
             |                     
            
                43.53
             |                                 
            
                25,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2008
             | 
            
                +3.70 / +7.25%
             |             
            
                53.00
             |           
            
                54.70
             |               
            
                53.00
             |                           
            
                54.70
             | 
            
                54.63
             |                     
            
                43.61
             |                                 
            
                40,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2008
             | 
            
                +3.00 / +6.25%
             |             
            
                49.00
             |           
            
                51.50
             |               
            
                48.00
             |                           
            
                51.00
             | 
            
                49.81
             |                     
            
                40.66
             |                                 
            
                22,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2008
             | 
            
                0.00 / 0.00%
             |             
            
                50.20
             |           
            
                50.20
             |               
            
                47.00
             |                           
            
                48.00
             | 
            
                48.69
             |                     
            
                38.27
             |                                 
            
                27,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2008
             | 
            
                +3.10 / +6.90%
             |             
            
                44.00
             |           
            
                48.00
             |               
            
                43.70
             |                           
            
                48.00
             | 
            
                45.69
             |                     
            
                38.27
             |                                 
            
                30,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2008
             | 
            
                -0.20 / -0.44%
             |             
            
                46.60
             |           
            
                47.90
             |               
            
                43.20
             |                           
            
                44.90
             | 
            
                45.46
             |                     
            
                35.80
             |                                 
            
                10,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2008
             | 
            
                -2.40 / -5.05%
             |             
            
                47.30
             |           
            
                47.30
             |               
            
                44.00
             |                           
            
                45.10
             | 
            
                44.97
             |                     
            
                35.96
             |                                 
            
                12,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2008
             | 
            
                -1.70 / -3.46%
             |             
            
                47.50
             |           
            
                47.60
             |               
            
                47.00
             |                           
            
                47.50
             | 
            
                47.33
             |                     
            
                37.87
             |                                 
            
                6,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2008
             | 
            
                -0.80 / -1.60%
             |             
            
                47.50
             |           
            
                49.20
             |               
            
                47.50
             |                           
            
                49.20
             | 
            
                48.43
             |                     
            
                39.23
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2008
             | 
            
                +2.00 / +4.17%
             |             
            
                46.93
             |           
            
                51.00
             |               
            
                46.00
             |                           
            
                50.00
             | 
            
                49.23
             |                     
            
                39.87
             |                                 
            
                38,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2008
             | 
            
                +1.00 / +2.13%
             |             
            
                47.41
             |           
            
                51.70
             |               
            
                46.50
             |                           
            
                48.00
             | 
            
                49.43
             |                     
            
                38.27
             |                                 
            
                35,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2008
             | 
            
                +4.00 / +9.30%
             |             
            
                46.90
             |           
            
                47.00
             |               
            
                46.90
             |                           
            
                47.00
             | 
            
                46.97
             |                     
            
                37.47
             |                                 
            
                8,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2008
             | 
            
                -3.50 / -7.53%
             |             
            
                42.75
             |           
            
                45.00
             |               
            
                41.60
             |                           
            
                43.00
             | 
            
                42.83
             |                     
            
                34.29
             |                                 
            
                35,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2008
             | 
            
                -3.50 / -7.00%
             |             
            
                45.50
             |           
            
                47.80
             |               
            
                45.50
             |                           
            
                46.50
             | 
            
                46.18
             |                     
            
                37.08
             |                                 
            
                18,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2008
             | 
            
                0.00 / 0.00%
             |             
            
                49.00
             |           
            
                52.50
             |               
            
                49.00
             |                           
            
                50.00
             | 
            
                50.52
             |                     
            
                39.87
             |                                 
            
                17,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2008
             | 
            
                -1.20 / -2.34%
             |             
            
                47.50
             |           
            
                50.50
             |               
            
                47.50
             |                           
            
                50.00
             | 
            
                48.91
             |                     
            
                39.87
             |                                 
            
                18,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2008
             | 
            
                -0.30 / -0.58%
             |             
            
                51.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                51.20
             | 
            
                52.24
             |                     
            
                40.82
             |                                 
            
                23,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2008
             | 
            
                +2.20 / +4.46%
             |             
            
                50.40
             |           
            
                54.10
             |               
            
                50.40
             |                           
            
                51.50
             | 
            
                52.45
             |                     
            
                41.06
             |                                 
            
                20,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2008
             | 
            
                -4.70 / -8.70%
             |             
            
                51.40
             |           
            
                54.10
             |               
            
                48.70
             |                           
            
                49.30
             | 
            
                50.44
             |                     
            
                39.31
             |                                 
            
                15,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2008
             | 
            
                -2.00 / -3.57%
             |             
            
                53.50
             |           
            
                55.00
             |               
            
                53.50
             |                           
            
                54.00
             | 
            
                54.09
             |                     
            
                43.06
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2008
             | 
            
                -0.70 / -1.23%
             |             
            
                55.00
             |           
            
                57.40
             |               
            
                55.00
             |                           
            
                56.00
             | 
            
                56.18
             |                     
            
                44.65
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/2/2008
             | 
            
                -1.30 / -2.24%
             |             
            
                56.50
             |           
            
                58.00
             |               
            
                56.50
             |                           
            
                56.70
             | 
            
                57.33
             |                     
            
                45.21
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2007
             | 
            
                0.00 / 0.00%
             |             
            
                57.00
             |           
            
                58.50
             |               
            
                57.00
             |                           
            
                58.00
             | 
            
                57.87
             |                     
            
                46.25
             |                                 
            
                13,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2007
             | 
            
                0.00 / 0.00%
             |             
            
                57.00
             |           
            
                58.00
             |               
            
                57.00
             |                           
            
                58.00
             | 
            
                57.48
             |                     
            
                46.25
             |                                 
            
                13,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2007
             | 
            
                +1.00 / +1.75%
             |             
            
                56.50
             |           
            
                58.00
             |               
            
                56.50
             |                           
            
                58.00
             | 
            
                57.54
             |                     
            
                46.25
             |                                 
            
                18,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |