| 
                 
                    Closing price on 4/14/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    54.90 | 
                 
                
                    | High | 
                    54.90 | 
                 
                
                    | Low | 
                    52.90 | 
                     
                
                    | Volume | 
                    342,020 | 
                                 
                
                    | Split-adjusted Price | 
                    22.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/14/2017
             | 
            
                -1.20 / -2.19%
             |             
            
                54.90
             |           
            
                54.90
             |               
            
                52.90
             |                           
            
                53.70
             | 
            
                54.90
             |                     
            
                22.10
             |                                 
            
                342,020
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2017
             | 
            
                -0.60 / -1.08%
             |             
            
                55.50
             |           
            
                55.60
             |               
            
                54.60
             |                           
            
                54.90
             | 
            
                55.16
             |                     
            
                22.59
             |                                 
            
                190,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2017
             | 
            
                +0.20 / +0.36%
             |             
            
                55.30
             |           
            
                56.30
             |               
            
                55.00
             |                           
            
                55.50
             | 
            
                55.61
             |                     
            
                22.84
             |                                 
            
                392,330
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2017
             | 
            
                +0.80 / +1.47%
             |             
            
                54.50
             |           
            
                55.60
             |               
            
                54.10
             |                           
            
                55.30
             | 
            
                54.50
             |                     
            
                22.76
             |                                 
            
                322,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2017
             | 
            
                +0.60 / +1.11%
             |             
            
                53.90
             |           
            
                54.90
             |               
            
                53.80
             |                           
            
                54.50
             | 
            
                53.90
             |                     
            
                22.43
             |                                 
            
                177,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2017
             | 
            
                -1.40 / -2.53%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                53.70
             |                           
            
                53.90
             | 
            
                54.10
             |                     
            
                22.18
             |                                 
            
                320,365
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2017
             | 
            
                -0.70 / -1.25%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                54.80
             |                           
            
                55.30
             | 
            
                55.21
             |                     
            
                22.76
             |                                 
            
                479,155
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2017
             | 
            
                +0.70 / +1.27%
             |             
            
                55.30
             |           
            
                56.50
             |               
            
                55.10
             |                           
            
                56.00
             | 
            
                55.82
             |                     
            
                23.04
             |                                 
            
                600,965
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2017
             | 
            
                -0.80 / -1.43%
             |             
            
                56.10
             |           
            
                56.20
             |               
            
                55.30
             |                           
            
                55.30
             | 
            
                55.65
             |                     
            
                22.76
             |                                 
            
                167,240
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2017
             | 
            
                -0.70 / -1.23%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                55.70
             |                           
            
                56.10
             | 
            
                56.35
             |                     
            
                23.08
             |                                 
            
                211,521
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2017
             | 
            
                +1.30 / +2.34%
             |             
            
                55.80
             |           
            
                57.20
             |               
            
                55.50
             |                           
            
                56.80
             | 
            
                56.68
             |                     
            
                23.37
             |                                 
            
                530,796
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2017
             | 
            
                -0.20 / -0.36%
             |             
            
                55.50
             |           
            
                56.10
             |               
            
                55.30
             |                           
            
                55.50
             | 
            
                55.68
             |                     
            
                22.84
             |                                 
            
                177,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2017
             | 
            
                +0.40 / +0.72%
             |             
            
                55.30
             |           
            
                56.30
             |               
            
                54.90
             |                           
            
                55.70
             | 
            
                55.69
             |                     
            
                22.92
             |                                 
            
                224,827
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2017
             | 
            
                +0.20 / +0.36%
             |             
            
                55.10
             |           
            
                55.90
             |               
            
                54.30
             |                           
            
                55.30
             | 
            
                55.06
             |                     
            
                22.76
             |                                 
            
                182,807
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2017
             | 
            
                +0.10 / +0.18%
             |             
            
                55.30
             |           
            
                57.00
             |               
            
                54.90
             |                           
            
                55.10
             | 
            
                55.00
             |                     
            
                22.67
             |                                 
            
                322,120
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2017
             | 
            
                +1.40 / +2.61%
             |             
            
                53.20
             |           
            
                55.00
             |               
            
                52.50
             |                           
            
                55.00
             | 
            
                53.57
             |                     
            
                22.63
             |                                 
            
                358,957
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2017
             | 
            
                -0.30 / -0.56%
             |             
            
                54.00
             |           
            
                54.80
             |               
            
                53.40
             |                           
            
                53.60
             | 
            
                53.99
             |                     
            
                22.06
             |                                 
            
                325,253
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2017
             | 
            
                -1.10 / -2.00%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                53.00
             |                           
            
                53.90
             | 
            
                54.09
             |                     
            
                22.18
             |                                 
            
                632,526
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2017
             | 
            
                -2.00 / -3.51%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.59
             |                     
            
                22.63
             |                                 
            
                640,534
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2017
             | 
            
                -0.20 / -0.35%
             |             
            
                57.70
             |           
            
                57.70
             |               
            
                55.40
             |                           
            
                57.00
             | 
            
                56.26
             |                     
            
                23.45
             |                                 
            
                913,708
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2017
             | 
            
                -0.10 / -0.17%
             |             
            
                57.50
             |           
            
                58.40
             |               
            
                57.10
             |                           
            
                57.20
             | 
            
                57.39
             |                     
            
                23.54
             |                                 
            
                574,460
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2017
             | 
            
                +0.20 / +0.35%
             |             
            
                57.10
             |           
            
                58.50
             |               
            
                57.10
             |                           
            
                57.30
             | 
            
                57.83
             |                     
            
                23.58
             |                                 
            
                524,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2017
             | 
            
                -0.60 / -1.04%
             |             
            
                57.80
             |           
            
                58.30
             |               
            
                57.00
             |                           
            
                57.10
             | 
            
                57.36
             |                     
            
                23.50
             |                                 
            
                776,580
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2017
             | 
            
                -0.20 / -0.35%
             |             
            
                57.90
             |           
            
                58.60
             |               
            
                56.60
             |                           
            
                57.70
             | 
            
                57.45
             |                     
            
                23.74
             |                                 
            
                399,892
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.90
             |           
            
                59.20
             |               
            
                57.00
             |                           
            
                57.90
             | 
            
                57.96
             |                     
            
                23.83
             |                                 
            
                372,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2017
             | 
            
                +2.80 / +5.08%
             |             
            
                55.20
             |           
            
                58.00
             |               
            
                55.10
             |                           
            
                57.90
             | 
            
                56.39
             |                     
            
                23.83
             |                                 
            
                742,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2017
             | 
            
                -3.70 / -6.29%
             |             
            
                58.80
             |           
            
                60.50
             |               
            
                55.10
             |                           
            
                55.10
             | 
            
                58.80
             |                     
            
                22.67
             |                                 
            
                1,634,919
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2017
             | 
            
                +1.50 / +2.62%
             |             
            
                57.10
             |           
            
                58.80
             |               
            
                56.60
             |                           
            
                58.80
             | 
            
                57.49
             |                     
            
                24.20
             |                                 
            
                487,989
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2017
             | 
            
                +1.30 / +2.32%
             |             
            
                56.80
             |           
            
                57.90
             |               
            
                56.00
             |                           
            
                57.30
             | 
            
                56.00
             |                     
            
                23.58
             |                                 
            
                529,135
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2017
             | 
            
                +2.20 / +4.09%
             |             
            
                53.10
             |           
            
                56.70
             |               
            
                53.00
             |                           
            
                56.00
             | 
            
                55.00
             |                     
            
                23.04
             |                                 
            
                950,248
             |  
            
                 
             |                                                              
             
    
         
    
    
 |