| 
                 
                    Closing price on 6/26/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.80 | 
                 
                
                    | High | 
                    6.80 | 
                 
                
                    | Low | 
                    6.70 | 
                     
                
                    | Volume | 
                    436,050 | 
                                 
                
                    | Split-adjusted Price | 
                    4.26 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVN Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/26/2012
             | 
            
                -0.50 / -6.94%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.71
             |                     
            
                4.26
             |                                 
            
                436,050
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2012
             | 
            
                -0.50 / -6.49%
             |             
            
                7.20
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.24
             |                     
            
                4.58
             |                                 
            
                140,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2012
             | 
            
                -0.50 / -6.10%
             |             
            
                8.50
             |           
            
                8.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.87
             |                     
            
                4.90
             |                                 
            
                272,950
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2012
             | 
            
                +0.50 / +6.49%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                5.22
             |                                 
            
                157,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2012
             | 
            
                +0.50 / +6.94%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                4.90
             |                                 
            
                324,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2012
             | 
            
                -0.30 / -4.00%
             |             
            
                7.00
             |           
            
                7.20
             |               
            
                6.80
             |                           
            
                7.20
             | 
            
                7.12
             |                     
            
                4.58
             |                                 
            
                48,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2012
             | 
            
                +0.40 / +5.63%
             |             
            
                6.80
             |           
            
                7.50
             |               
            
                6.70
             |                           
            
                7.50
             | 
            
                6.73
             |                     
            
                4.77
             |                                 
            
                386,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2012
             | 
            
                -0.50 / -6.58%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                4.52
             |                                 
            
                30,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2012
             | 
            
                -0.50 / -6.17%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                4.84
             |                                 
            
                338,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2012
             | 
            
                -0.60 / -6.90%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                5.15
             |                                 
            
                353,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2012
             | 
            
                -0.60 / -6.45%
             |             
            
                8.70
             |           
            
                8.70
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                5.54
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2012
             | 
            
                -0.70 / -7.00%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                9.30
             |                           
            
                9.30
             | 
            
                9.30
             |                     
            
                5.92
             |                                 
            
                92,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2012
             | 
            
                -0.70 / -6.54%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                6.36
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2012
             | 
            
                -0.70 / -6.14%
             |             
            
                10.70
             |           
            
                10.70
             |               
            
                10.70
             |                           
            
                10.70
             | 
            
                10.70
             |                     
            
                6.81
             |                                 
            
                150,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2012
             | 
            
                -0.80 / -6.56%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                7.25
             |                                 
            
                198,250
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2012
             | 
            
                0.00 / 0.00%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                7.76
             |                                 
            
                267,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2012
             | 
            
                -0.90 / -6.87%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                12.20
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                7.76
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2012
             | 
            
                -0.90 / -6.43%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                8.34
             |                                 
            
                149,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2012
             | 
            
                -1.00 / -6.67%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                8.91
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2012
             | 
            
                -1.10 / -6.83%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                9.55
             |                                 
            
                92,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.10
             |                     
            
                10.25
             |                                 
            
                265,750
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2012
             | 
            
                -1.20 / -6.94%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.10
             |                     
            
                10.25
             |                                 
            
                199,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2012
             | 
            
                -1.30 / -6.99%
             |             
            
                17.30
             |           
            
                17.30
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.30
             |                     
            
                11.01
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2012
             | 
            
                -1.40 / -7.00%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                18.60
             |                           
            
                18.60
             | 
            
                18.60
             |                     
            
                11.84
             |                                 
            
                92,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2012
             | 
            
                -1.40 / -6.54%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                12.73
             |                                 
            
                265,950
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2012
             | 
            
                0.00 / 0.00%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                13.62
             |                                 
            
                197,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                13.62
             |                                 
            
                150,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2012
             | 
            
                0.00 / 0.00%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                13.62
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                13.62
             |                                 
            
                92,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.40
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                13.62
             |                                 
            
                117,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |