| 
                 
                    Closing price on 1/7/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    8.50 | 
                 
                
                    | High | 
                    8.60 | 
                 
                
                    | Low | 
                    8.50 | 
                     
                
                    | Volume | 
                    5,000 | 
                                 
                
                    | Split-adjusted Price | 
                    1.37 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/7/2013
             | 
            
                -0.10 / -1.16%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                1.37
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2013
             | 
            
                +0.30 / +3.61%
             |             
            
                8.40
             |           
            
                8.60
             |               
            
                8.40
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                1.39
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2013
             | 
            
                -0.30 / -3.49%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                33,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2013
             | 
            
                +0.10 / +1.18%
             |             
            
                8.70
             |           
            
                8.90
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                1.39
             |                                 
            
                15,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2012
             | 
            
                +0.10 / +1.19%
             |             
            
                8.30
             |           
            
                8.50
             |               
            
                8.30
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                1.37
             |                                 
            
                1,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.60
             |               
            
                8.30
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                29,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2012
             | 
            
                +0.20 / +2.44%
             |             
            
                8.00
             |           
            
                8.40
             |               
            
                8.00
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                14,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2012
             | 
            
                +0.20 / +2.50%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                1.33
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2012
             | 
            
                +0.10 / +1.27%
             |             
            
                7.90
             |           
            
                8.30
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                14,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2012
             | 
            
                -0.40 / -4.82%
             |             
            
                7.80
             |           
            
                8.30
             |               
            
                7.80
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                1.28
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.40
             |               
            
                8.20
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                37,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2012
             | 
            
                -0.10 / -1.19%
             |             
            
                8.30
             |           
            
                8.40
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.40
             |               
            
                8.10
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.40
             |               
            
                8.20
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/12/2012
             | 
            
                +0.10 / +1.20%
             |             
            
                8.20
             |           
            
                8.40
             |               
            
                8.10
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                1.36
             |                                 
            
                12,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/11/2012
             | 
            
                +0.10 / +1.22%
             |             
            
                8.10
             |           
            
                8.30
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                10,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/10/2012
             | 
            
                +0.20 / +2.50%
             |             
            
                8.00
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                1.33
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2012
             | 
            
                -0.30 / -3.61%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2012
             | 
            
                +0.20 / +2.47%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                1.34
             |                                 
            
                5,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                1.31
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/4/2012
             | 
            
                +0.10 / +1.25%
             |             
            
                7.90
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                1.31
             |                                 
            
                13,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/3/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                10,075
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2012
             | 
            
                +0.20 / +2.56%
             |             
            
                7.60
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                1,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                1.26
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2012
             | 
            
                -0.10 / -1.27%
             |             
            
                7.70
             |           
            
                7.90
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                1.26
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2012
             | 
            
                -0.10 / -1.25%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                1.28
             |                                 
            
                23,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2012
             | 
            
                -0.20 / -2.44%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                1.29
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |