| 
                 
                    Closing price on 5/15/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.30 | 
                 
                
                    | High | 
                    11.40 | 
                 
                
                    | Low | 
                    11.20 | 
                     
                
                    | Volume | 
                    88,940 | 
                                 
                
                    | Split-adjusted Price | 
                    11.30 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/15/2017
             | 
            
                -0.10 / -0.88%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.20
             |                           
            
                11.30
             | 
            
                11.29
             |                     
            
                11.30
             |                                 
            
                88,940
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2017
             | 
            
                +0.30 / +2.70%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                11.20
             |                           
            
                11.40
             | 
            
                11.46
             |                     
            
                11.40
             |                                 
            
                89,637
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2017
             | 
            
                -0.50 / -4.31%
             |             
            
                11.70
             |           
            
                12.10
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.79
             |                     
            
                11.10
             |                                 
            
                101,967
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2017
             | 
            
                +0.90 / +8.41%
             |             
            
                10.70
             |           
            
                11.70
             |               
            
                10.70
             |                           
            
                11.60
             | 
            
                11.34
             |                     
            
                11.60
             |                                 
            
                135,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2017
             | 
            
                +0.10 / +0.94%
             |             
            
                10.60
             |           
            
                10.70
             |               
            
                10.50
             |                           
            
                10.70
             | 
            
                10.65
             |                     
            
                10.70
             |                                 
            
                71,958
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                -0.10 / -0.93%
             |             
            
                10.70
             |           
            
                10.80
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.70
             |                     
            
                10.60
             |                                 
            
                81,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2017
             | 
            
                +0.40 / +3.88%
             |             
            
                10.50
             |           
            
                10.80
             |               
            
                10.40
             |                           
            
                10.70
             | 
            
                10.65
             |                     
            
                10.70
             |                                 
            
                93,109
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                -0.30 / -2.83%
             |             
            
                10.20
             |           
            
                10.60
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.36
             |                     
            
                10.30
             |                                 
            
                260,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                -0.90 / -7.83%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                11.00
             |                     
            
                10.60
             |                                 
            
                447,644
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -0.30 / -2.54%
             |             
            
                11.80
             |           
            
                11.90
             |               
            
                11.40
             |                           
            
                11.50
             | 
            
                11.80
             |                     
            
                11.50
             |                                 
            
                122,155
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                -0.20 / -1.67%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.70
             |                           
            
                11.80
             | 
            
                12.00
             |                     
            
                11.80
             |                                 
            
                89,540
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                +0.10 / +0.84%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.80
             |                           
            
                12.00
             | 
            
                11.90
             |                     
            
                12.00
             |                                 
            
                89,513
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                12.00
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                11.89
             |                     
            
                11.90
             |                                 
            
                123,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                11.90
             |           
            
                11.90
             |               
            
                11.70
             |                           
            
                11.90
             | 
            
                11.83
             |                     
            
                11.90
             |                                 
            
                73,957
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                -0.20 / -1.65%
             |             
            
                12.00
             |           
            
                12.20
             |               
            
                11.80
             |                           
            
                11.90
             | 
            
                12.03
             |                     
            
                11.90
             |                                 
            
                74,352
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                -0.10 / -0.82%
             |             
            
                11.90
             |           
            
                12.30
             |               
            
                11.80
             |                           
            
                12.10
             | 
            
                12.20
             |                     
            
                12.10
             |                                 
            
                123,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2017
             | 
            
                +0.80 / +7.02%
             |             
            
                11.40
             |           
            
                12.40
             |               
            
                11.20
             |                           
            
                12.20
             | 
            
                11.40
             |                     
            
                12.20
             |                                 
            
                236,350
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2017
             | 
            
                -0.40 / -3.39%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                11.10
             |                           
            
                11.40
             | 
            
                11.27
             |                     
            
                11.40
             |                                 
            
                151,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2017
             | 
            
                -0.90 / -7.09%
             |             
            
                12.60
             |           
            
                12.60
             |               
            
                11.50
             |                           
            
                11.80
             | 
            
                11.85
             |                     
            
                11.80
             |                                 
            
                621,876
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2017
             | 
            
                -0.60 / -4.51%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.95
             |                     
            
                12.70
             |                                 
            
                276,011
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2017
             | 
            
                -0.10 / -0.75%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                13.20
             |                           
            
                13.30
             | 
            
                13.26
             |                     
            
                13.30
             |                                 
            
                55,720
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.40
             | 
            
                13.24
             |                     
            
                13.40
             |                                 
            
                133,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2017
             | 
            
                +0.10 / +0.75%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.40
             | 
            
                13.30
             |                     
            
                13.40
             |                                 
            
                87,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2017
             | 
            
                -0.20 / -1.48%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.30
             | 
            
                13.32
             |                     
            
                13.30
             |                                 
            
                237,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.42
             |                     
            
                13.50
             |                                 
            
                85,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                13.50
             |                                 
            
                85,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2017
             | 
            
                -0.10 / -0.74%
             |             
            
                13.60
             |           
            
                13.70
             |               
            
                13.40
             |                           
            
                13.50
             | 
            
                13.54
             |                     
            
                13.50
             |                                 
            
                350,154
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2017
             | 
            
                -0.20 / -1.45%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.64
             |                     
            
                13.60
             |                                 
            
                204,048
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2017
             | 
            
                -0.10 / -0.72%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.60
             |                           
            
                13.80
             | 
            
                13.68
             |                     
            
                13.80
             |                                 
            
                59,296
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2017
             | 
            
                +0.30 / +2.21%
             |             
            
                13.60
             |           
            
                13.90
             |               
            
                13.60
             |                           
            
                13.90
             | 
            
                13.74
             |                     
            
                13.90
             |                                 
            
                123,223
             |  
            
                 
             |                                                              
             
    
         
    
    
 |