| 
                 
                    Closing price on 11/28/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.10 | 
                 
                
                    | High | 
                    13.10 | 
                 
                
                    | Low | 
                    13.10 | 
                     
                
                    | Volume | 
                    200 | 
                                 
                
                    | Split-adjusted Price | 
                    10.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CEN Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                10.20
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.10
             | 
            
                13.27
             |                     
            
                10.20
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2019
             | 
            
                +0.10 / +0.77%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.80
             |                           
            
                13.10
             | 
            
                12.98
             |                     
            
                10.20
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2019
             | 
            
                -1.00 / -7.14%
             |             
            
                13.20
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.07
             |                     
            
                10.12
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2019
             | 
            
                -0.50 / -3.57%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.96
             |                     
            
                10.51
             |                                 
            
                11,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2019
             | 
            
                -0.20 / -1.41%
             |             
            
                13.70
             |           
            
                14.00
             |               
            
                13.60
             |                           
            
                14.00
             | 
            
                13.64
             |                     
            
                10.90
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2019
             | 
            
                +0.10 / +0.71%
             |             
            
                14.30
             |           
            
                14.50
             |               
            
                13.60
             |                           
            
                14.20
             | 
            
                14.21
             |                     
            
                11.05
             |                                 
            
                42,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2019
             | 
            
                +0.60 / +4.44%
             |             
            
                13.70
             |           
            
                14.40
             |               
            
                13.70
             |                           
            
                14.10
             | 
            
                14.15
             |                     
            
                10.97
             |                                 
            
                29,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2019
             | 
            
                -0.90 / -6.25%
             |             
            
                13.50
             |           
            
                13.90
             |               
            
                13.20
             |                           
            
                13.50
             | 
            
                13.67
             |                     
            
                10.51
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2019
             | 
            
                -0.60 / -4.11%
             |             
            
                14.60
             |           
            
                15.10
             |               
            
                13.70
             |                           
            
                14.00
             | 
            
                14.41
             |                     
            
                10.90
             |                                 
            
                11,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2019
             | 
            
                -0.40 / -2.67%
             |             
            
                15.40
             |           
            
                16.20
             |               
            
                14.60
             |                           
            
                14.60
             | 
            
                15.56
             |                     
            
                11.36
             |                                 
            
                18,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2019
             | 
            
                +0.60 / +4.17%
             |             
            
                15.90
             |           
            
                16.10
             |               
            
                14.50
             |                           
            
                15.00
             | 
            
                15.38
             |                     
            
                11.67
             |                                 
            
                41,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2019
             | 
            
                +1.80 / +14.29%
             |             
            
                12.70
             |           
            
                14.40
             |               
            
                12.00
             |                           
            
                14.40
             | 
            
                14.15
             |                     
            
                11.21
             |                                 
            
                71,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2019
             | 
            
                -0.30 / -2.33%
             |             
            
                12.60
             |           
            
                12.60
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                9.81
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2019
             | 
            
                +0.30 / +2.38%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.70
             |                           
            
                12.90
             | 
            
                12.89
             |                     
            
                10.04
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2019
             | 
            
                -0.20 / -1.56%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.61
             |                     
            
                9.81
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2019
             | 
            
                -0.30 / -2.29%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.77
             |                     
            
                9.96
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2019
             | 
            
                +0.50 / +3.97%
             |             
            
                12.60
             |           
            
                13.10
             |               
            
                12.50
             |                           
            
                13.10
             | 
            
                12.70
             |                     
            
                10.20
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2019
             | 
            
                -0.20 / -1.56%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.65
             |                     
            
                9.81
             |                                 
            
                4,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.76
             |                     
            
                9.88
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2019
             | 
            
                -0.20 / -1.55%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.84
             |                     
            
                9.88
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2019
             | 
            
                -0.10 / -0.77%
             |             
            
                12.80
             |           
            
                12.90
             |               
            
                12.80
             |                           
            
                12.90
             | 
            
                12.83
             |                     
            
                10.04
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.80
             |                           
            
                13.00
             | 
            
                12.88
             |                     
            
                10.12
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.13
             |                     
            
                10.12
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2019
             | 
            
                -0.40 / -3.01%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                13.04
             |                     
            
                10.04
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2019
             | 
            
                -0.40 / -2.92%
             |             
            
                13.00
             |           
            
                13.30
             |               
            
                12.80
             |                           
            
                13.30
             | 
            
                12.87
             |                     
            
                10.35
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.70
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                10.66
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2019
             | 
            
                +0.80 / +6.20%
             |             
            
                12.90
             |           
            
                13.80
             |               
            
                12.80
             |                           
            
                13.70
             | 
            
                13.03
             |                     
            
                10.66
             |                                 
            
                6,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2019
             | 
            
                -0.30 / -2.27%
             |             
            
                12.90
             |           
            
                13.60
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.96
             |                     
            
                10.04
             |                                 
            
                4,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2019
             | 
            
                -0.40 / -2.94%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                10.27
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
         
    
    
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