| 
                 
                    Closing price on 5/20/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.80 | 
                 
                
                    | High | 
                    4.90 | 
                 
                
                    | Low | 
                    4.70 | 
                     
                
                    | Volume | 
                    68,100 | 
                                 
                
                    | Split-adjusted Price | 
                    4.53 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CMI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/20/2013
             | 
            
                -0.10 / -2.04%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.77
             |                     
            
                4.53
             |                                 
            
                68,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.90
             | 
            
                4.80
             |                     
            
                4.63
             |                                 
            
                53,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                +0.10 / +2.08%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.76
             |                     
            
                4.63
             |                                 
            
                54,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                +0.20 / +4.35%
             |             
            
                4.70
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.80
             | 
            
                4.78
             |                     
            
                4.53
             |                                 
            
                45,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                -0.20 / -4.17%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.34
             |                                 
            
                46,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                -0.10 / -2.04%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.60
             |                           
            
                4.80
             | 
            
                4.74
             |                     
            
                4.53
             |                                 
            
                110,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                -0.20 / -3.92%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.93
             |                     
            
                4.63
             |                                 
            
                81,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                +0.30 / +6.25%
             |             
            
                4.80
             |           
            
                5.10
             |               
            
                4.80
             |                           
            
                5.10
             | 
            
                4.95
             |                     
            
                4.82
             |                                 
            
                86,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.81
             |                     
            
                4.53
             |                                 
            
                45,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                -0.40 / -7.69%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.97
             |                     
            
                4.53
             |                                 
            
                99,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                +0.40 / +8.33%
             |             
            
                4.90
             |           
            
                5.20
             |               
            
                4.80
             |                           
            
                5.20
             | 
            
                5.08
             |                     
            
                4.91
             |                                 
            
                151,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                +0.40 / +9.09%
             |             
            
                4.40
             |           
            
                4.80
             |               
            
                4.40
             |                           
            
                4.80
             | 
            
                4.67
             |                     
            
                4.53
             |                                 
            
                129,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                -0.20 / -4.35%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.44
             |                     
            
                4.15
             |                                 
            
                62,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.60
             | 
            
                4.53
             |                     
            
                4.34
             |                                 
            
                80,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                -0.20 / -4.17%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.71
             |                     
            
                4.34
             |                                 
            
                63,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                +0.40 / +9.09%
             |             
            
                4.50
             |           
            
                4.80
             |               
            
                4.40
             |                           
            
                4.80
             | 
            
                4.69
             |                     
            
                4.53
             |                                 
            
                191,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.40
             |               
            
                4.00
             |                           
            
                4.40
             | 
            
                4.20
             |                     
            
                4.15
             |                                 
            
                211,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                -0.40 / -8.33%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.48
             |                     
            
                4.15
             |                                 
            
                117,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -0.20 / -4.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.78
             |                     
            
                4.53
             |                                 
            
                81,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                -0.10 / -1.96%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.98
             |                     
            
                4.72
             |                                 
            
                76,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.02
             |                     
            
                4.82
             |                                 
            
                132,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                -0.40 / -7.27%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.33
             |                     
            
                4.82
             |                                 
            
                40,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.40
             |                           
            
                5.50
             | 
            
                5.44
             |                     
            
                5.19
             |                                 
            
                68,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                -0.10 / -1.79%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.61
             |                     
            
                5.19
             |                                 
            
                67,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                -0.10 / -1.75%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                5.29
             |                                 
            
                151,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.61
             |                     
            
                5.38
             |                                 
            
                104,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                5.38
             |                                 
            
                103,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                +0.20 / +3.64%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.56
             |                     
            
                5.38
             |                                 
            
                55,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.55
             |                     
            
                5.19
             |                                 
            
                150,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2013
             | 
            
                -0.10 / -1.79%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.60
             |                     
            
                5.19
             |                                 
            
                53,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |