| 
                 
                    Closing price on 5/23/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    14.60 | 
                 
                
                    | High | 
                    15.00 | 
                 
                
                    | Low | 
                    14.40 | 
                     
                
                    | Volume | 
                    14,200 | 
                                 
                
                    | Split-adjusted Price | 
                    2.75 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/23/2014
             | 
            
                +0.30 / +2.04%
             |             
            
                14.60
             |           
            
                15.00
             |               
            
                14.40
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                2.75
             |                                 
            
                14,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2014
             | 
            
                -0.10 / -0.68%
             |             
            
                14.70
             |           
            
                15.00
             |               
            
                14.70
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                2.70
             |                                 
            
                21,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2014
             | 
            
                -0.50 / -3.27%
             |             
            
                14.50
             |           
            
                15.00
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                2.72
             |                                 
            
                8,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2014
             | 
            
                -0.10 / -0.65%
             |             
            
                13.90
             |           
            
                15.30
             |               
            
                13.90
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                2.81
             |                                 
            
                40,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2014
             | 
            
                +0.50 / +3.36%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                13.50
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                2.83
             |                                 
            
                1,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2014
             | 
            
                +0.50 / +3.47%
             |             
            
                14.40
             |           
            
                14.90
             |               
            
                14.40
             |                           
            
                14.90
             | 
            
                14.90
             |                     
            
                2.74
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2014
             | 
            
                -0.30 / -2.04%
             |             
            
                14.90
             |           
            
                14.90
             |               
            
                13.30
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                2.64
             |                                 
            
                86,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2014
             | 
            
                +0.20 / +1.38%
             |             
            
                14.30
             |           
            
                15.30
             |               
            
                13.40
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                2.70
             |                                 
            
                9,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2014
             | 
            
                -1.00 / -6.45%
             |             
            
                14.50
             |           
            
                14.60
             |               
            
                14.00
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                2.66
             |                                 
            
                78,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2014
             | 
            
                -0.70 / -4.32%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                14.60
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                2.85
             |                                 
            
                31,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2014
             | 
            
                +1.40 / +9.46%
             |             
            
                15.00
             |           
            
                16.20
             |               
            
                14.50
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                2.98
             |                                 
            
                43,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2014
             | 
            
                -1.60 / -9.76%
             |             
            
                15.50
             |           
            
                16.00
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                2.72
             |                                 
            
                75,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2014
             | 
            
                +0.50 / +3.14%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.00
             |                           
            
                16.40
             | 
            
                16.40
             |                     
            
                3.01
             |                                 
            
                135,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2014
             | 
            
                -0.10 / -0.63%
             |             
            
                16.90
             |           
            
                16.90
             |               
            
                15.50
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                2.92
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2014
             | 
            
                -1.10 / -6.43%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                2.94
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2014
             | 
            
                0.00 / 0.00%
             |             
            
                16.50
             |           
            
                17.10
             |               
            
                16.00
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                3.14
             |                                 
            
                4,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2014
             | 
            
                -0.10 / -0.58%
             |             
            
                16.60
             |           
            
                17.30
             |               
            
                16.60
             |                           
            
                17.10
             | 
            
                17.10
             |                     
            
                3.14
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2014
             | 
            
                -0.20 / -1.15%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                3.16
             |                                 
            
                150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2014
             | 
            
                +0.70 / +4.19%
             |             
            
                16.40
             |           
            
                17.40
             |               
            
                16.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                3.20
             |                                 
            
                102,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2014
             | 
            
                +0.20 / +1.21%
             |             
            
                16.50
             |           
            
                16.70
             |               
            
                15.70
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                3.07
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2014
             | 
            
                +0.90 / +5.77%
             |             
            
                16.00
             |           
            
                16.50
             |               
            
                16.00
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                3.03
             |                                 
            
                20,150
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2014
             | 
            
                -1.00 / -6.02%
             |             
            
                15.00
             |           
            
                16.50
             |               
            
                15.00
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                2.86
             |                                 
            
                10,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2014
             | 
            
                -0.20 / -1.19%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                16.50
             |                           
            
                16.60
             | 
            
                16.60
             |                     
            
                3.05
             |                                 
            
                41,215
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2014
             | 
            
                +0.10 / +0.60%
             |             
            
                16.70
             |           
            
                16.80
             |               
            
                16.70
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                3.09
             |                                 
            
                30,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2014
             | 
            
                -0.20 / -1.18%
             |             
            
                16.30
             |           
            
                16.70
             |               
            
                16.30
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                3.07
             |                                 
            
                14,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2014
             | 
            
                -0.60 / -3.43%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                16.80
             |                           
            
                16.90
             | 
            
                16.90
             |                     
            
                3.10
             |                                 
            
                7,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2014
             | 
            
                0.00 / 0.00%
             |             
            
                18.00
             |           
            
                18.00
             |               
            
                16.80
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                3.21
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2014
             | 
            
                0.00 / 0.00%
             |             
            
                17.20
             |           
            
                17.50
             |               
            
                17.20
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                3.21
             |                                 
            
                7,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2014
             | 
            
                -0.10 / -0.57%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.30
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                3.21
             |                                 
            
                30,575
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2014
             | 
            
                -0.30 / -1.68%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                3.23
             |                                 
            
                28,284
             |  
            
                 
             |                                                              
             
    
         
    
    
 |