| 
                 
                    Closing price on 3/1/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    52.60 | 
                 
                
                    | High | 
                    54.10 | 
                 
                
                    | Low | 
                    51.80 | 
                     
                
                    | Volume | 
                    744,530 | 
                                 
                
                    | Split-adjusted Price | 
                    22.26 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/1/2017
             | 
            
                +1.50 / +2.85%
             |             
            
                52.60
             |           
            
                54.10
             |               
            
                51.80
             |                           
            
                54.10
             | 
            
                52.98
             |                     
            
                22.26
             |                                 
            
                744,530
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2017
             | 
            
                -2.30 / -4.19%
             |             
            
                55.00
             |           
            
                55.40
             |               
            
                52.60
             |                           
            
                52.60
             | 
            
                53.96
             |                     
            
                21.64
             |                                 
            
                639,943
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2017
             | 
            
                +2.90 / +5.58%
             |             
            
                52.20
             |           
            
                54.90
             |               
            
                51.90
             |                           
            
                54.90
             | 
            
                53.27
             |                     
            
                22.59
             |                                 
            
                591,030
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2017
             | 
            
                +1.40 / +2.77%
             |             
            
                50.90
             |           
            
                54.00
             |               
            
                50.60
             |                           
            
                52.00
             | 
            
                52.25
             |                     
            
                21.40
             |                                 
            
                798,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2017
             | 
            
                -1.10 / -2.13%
             |             
            
                52.00
             |           
            
                52.40
             |               
            
                49.50
             |                           
            
                50.60
             | 
            
                51.12
             |                     
            
                20.82
             |                                 
            
                531,334
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2017
             | 
            
                +0.30 / +0.58%
             |             
            
                51.40
             |           
            
                52.40
             |               
            
                50.30
             |                           
            
                51.70
             | 
            
                51.54
             |                     
            
                21.27
             |                                 
            
                508,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2017
             | 
            
                -0.20 / -0.39%
             |             
            
                51.60
             |           
            
                51.70
             |               
            
                50.80
             |                           
            
                51.40
             | 
            
                51.13
             |                     
            
                21.15
             |                                 
            
                447,488
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2017
             | 
            
                +0.50 / +0.98%
             |             
            
                51.20
             |           
            
                52.90
             |               
            
                50.00
             |                           
            
                51.60
             | 
            
                51.90
             |                     
            
                21.23
             |                                 
            
                530,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2017
             | 
            
                +4.60 / +9.89%
             |             
            
                46.50
             |           
            
                51.10
             |               
            
                46.40
             |                           
            
                51.10
             | 
            
                47.27
             |                     
            
                21.03
             |                                 
            
                925,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2017
             | 
            
                -0.60 / -1.27%
             |             
            
                47.50
             |           
            
                48.20
             |               
            
                46.40
             |                           
            
                46.50
             | 
            
                47.45
             |                     
            
                19.13
             |                                 
            
                1,053,227
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2017
             | 
            
                +0.20 / +0.43%
             |             
            
                47.00
             |           
            
                47.80
             |               
            
                46.60
             |                           
            
                47.10
             | 
            
                47.13
             |                     
            
                19.38
             |                                 
            
                274,480
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2017
             | 
            
                -1.00 / -2.09%
             |             
            
                47.70
             |           
            
                48.00
             |               
            
                46.70
             |                           
            
                46.90
             | 
            
                47.30
             |                     
            
                19.30
             |                                 
            
                537,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2017
             | 
            
                +0.70 / +1.48%
             |             
            
                47.20
             |           
            
                48.50
             |               
            
                46.60
             |                           
            
                47.90
             | 
            
                47.49
             |                     
            
                19.71
             |                                 
            
                561,943
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2017
             | 
            
                +1.30 / +2.83%
             |             
            
                46.50
             |           
            
                47.40
             |               
            
                46.00
             |                           
            
                47.20
             | 
            
                46.97
             |                     
            
                19.42
             |                                 
            
                473,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2017
             | 
            
                +1.40 / +3.15%
             |             
            
                44.50
             |           
            
                45.90
             |               
            
                44.40
             |                           
            
                45.90
             | 
            
                45.44
             |                     
            
                18.89
             |                                 
            
                717,010
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2017
             | 
            
                -0.60 / -1.33%
             |             
            
                45.10
             |           
            
                45.10
             |               
            
                43.70
             |                           
            
                44.50
             | 
            
                44.26
             |                     
            
                18.31
             |                                 
            
                906,492
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2017
             | 
            
                -0.20 / -0.44%
             |             
            
                45.30
             |           
            
                45.80
             |               
            
                45.10
             |                           
            
                45.10
             | 
            
                45.43
             |                     
            
                18.56
             |                                 
            
                487,145
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2017
             | 
            
                +0.10 / +0.22%
             |             
            
                45.60
             |           
            
                46.20
             |               
            
                45.30
             |                           
            
                45.30
             | 
            
                45.67
             |                     
            
                18.64
             |                                 
            
                439,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/3/2017
             | 
            
                -1.30 / -2.80%
             |             
            
                46.70
             |           
            
                46.80
             |               
            
                45.00
             |                           
            
                45.20
             | 
            
                45.40
             |                     
            
                18.60
             |                                 
            
                564,398
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2017
             | 
            
                +1.90 / +4.26%
             |             
            
                44.70
             |           
            
                46.50
             |               
            
                44.70
             |                           
            
                46.50
             | 
            
                45.36
             |                     
            
                19.13
             |                                 
            
                349,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2017
             | 
            
                +1.10 / +2.53%
             |             
            
                43.80
             |           
            
                44.60
             |               
            
                43.60
             |                           
            
                44.60
             | 
            
                44.14
             |                     
            
                18.35
             |                                 
            
                284,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2017
             | 
            
                +1.00 / +2.35%
             |             
            
                42.60
             |           
            
                43.80
             |               
            
                42.50
             |                           
            
                43.50
             | 
            
                43.04
             |                     
            
                17.90
             |                                 
            
                369,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2017
             | 
            
                +1.10 / +2.66%
             |             
            
                41.60
             |           
            
                44.50
             |               
            
                41.60
             |                           
            
                42.50
             | 
            
                43.25
             |                     
            
                17.49
             |                                 
            
                666,740
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2017
             | 
            
                +3.70 / +9.81%
             |             
            
                38.00
             |           
            
                41.40
             |               
            
                38.00
             |                           
            
                41.40
             | 
            
                40.20
             |                     
            
                17.04
             |                                 
            
                546,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2017
             | 
            
                -0.70 / -1.82%
             |             
            
                38.50
             |           
            
                38.50
             |               
            
                37.70
             |                           
            
                37.70
             | 
            
                38.13
             |                     
            
                15.51
             |                                 
            
                58,510
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2017
             | 
            
                +0.10 / +0.26%
             |             
            
                38.30
             |           
            
                38.70
             |               
            
                38.30
             |                           
            
                38.40
             | 
            
                38.52
             |                     
            
                15.80
             |                                 
            
                85,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2017
             | 
            
                +0.10 / +0.26%
             |             
            
                38.20
             |           
            
                38.90
             |               
            
                38.20
             |                           
            
                38.30
             | 
            
                38.48
             |                     
            
                15.76
             |                                 
            
                181,360
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2017
             | 
            
                -0.50 / -1.29%
             |             
            
                38.70
             |           
            
                38.70
             |               
            
                38.20
             |                           
            
                38.20
             | 
            
                38.37
             |                     
            
                15.72
             |                                 
            
                70,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2017
             | 
            
                -0.20 / -0.51%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                38.70
             |                           
            
                38.70
             | 
            
                38.90
             |                     
            
                15.92
             |                                 
            
                85,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2017
             | 
            
                +1.00 / +2.64%
             |             
            
                38.20
             |           
            
                39.10
             |               
            
                37.90
             |                           
            
                38.90
             | 
            
                38.63
             |                     
            
                16.01
             |                                 
            
                271,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |