| 
                 
                    Closing price on 4/11/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.00 | 
                 
                
                    | High | 
                    9.00 | 
                 
                
                    | Low | 
                    8.90 | 
                     
                
                    | Volume | 
                    19,500 | 
                                 
                
                    | Split-adjusted Price | 
                    1.46 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CVT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/11/2013
             | 
            
                +0.10 / +1.12%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                8.90
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                19,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2013
             | 
            
                +0.10 / +1.14%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                1.44
             |                                 
            
                22,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2013
             | 
            
                -0.20 / -2.22%
             |             
            
                8.80
             |           
            
                8.90
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                1.42
             |                                 
            
                7,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                9,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2013
             | 
            
                +0.10 / +1.12%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.90
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                17,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2013
             | 
            
                -0.10 / -1.11%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                1.44
             |                                 
            
                14,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2013
             | 
            
                +0.20 / +2.27%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.80
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                28,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2013
             | 
            
                -0.20 / -2.22%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                1.42
             |                                 
            
                43,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.90
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                7,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2013
             | 
            
                +0.10 / +1.12%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2013
             | 
            
                +0.20 / +2.30%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                1.44
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2013
             | 
            
                -0.40 / -4.40%
             |             
            
                8.80
             |           
            
                8.80
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                1.41
             |                                 
            
                6,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                1.47
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2013
             | 
            
                +0.10 / +1.11%
             |             
            
                8.70
             |           
            
                9.10
             |               
            
                8.60
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                1.47
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2013
             | 
            
                -0.20 / -2.17%
             |             
            
                8.80
             |           
            
                9.00
             |               
            
                8.80
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                12,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2013
             | 
            
                +0.20 / +2.22%
             |             
            
                9.20
             |           
            
                9.20
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                1.49
             |                                 
            
                150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2013
             | 
            
                -0.20 / -2.17%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                1.46
             |                                 
            
                10,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2013
             | 
            
                +0.10 / +1.10%
             |             
            
                9.10
             |           
            
                9.20
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                1.49
             |                                 
            
                38,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2013
             | 
            
                -0.10 / -1.09%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                8.70
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                1.47
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                9.20
             |               
            
                8.60
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                1.49
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2013
             | 
            
                +0.60 / +6.98%
             |             
            
                8.60
             |           
            
                9.20
             |               
            
                8.60
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                1.49
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2013
             | 
            
                +0.10 / +1.18%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                1.39
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2013
             | 
            
                -0.40 / -4.49%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                1.37
             |                                 
            
                7,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                8.90
             |           
            
                8.90
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                1.44
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |