| 
                 
                    Closing price on 5/4/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.20 | 
                 
                
                    | High | 
                    2.20 | 
                 
                
                    | Low | 
                    2.10 | 
                     
                
                    | Volume | 
                    8,090 | 
                                 
                
                    | Split-adjusted Price | 
                    1.25 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VNA Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/4/2016
             | 
            
                +0.10 / +4.76%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.10
             |                     
            
                1.25
             |                                 
            
                8,090
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2016
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.11
             |                     
            
                1.20
             |                                 
            
                18,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.15
             |                     
            
                1.25
             |                                 
            
                12,250
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2016
             | 
            
                -0.10 / -4.35%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.21
             |                     
            
                1.25
             |                                 
            
                25,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.28
             |                     
            
                1.31
             |                                 
            
                260
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.21
             |                     
            
                1.31
             |                                 
            
                107,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2016
             | 
            
                -0.10 / -4.17%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                1.31
             |                                 
            
                10,530
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                1.37
             |                                 
            
                20
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.35
             |                     
            
                1.37
             |                                 
            
                24,820
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.38
             |                     
            
                1.37
             |                                 
            
                89,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2016
             | 
            
                -0.10 / -4.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                1.37
             |                                 
            
                15,450
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.45
             |                     
            
                1.42
             |                                 
            
                14,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.45
             |                     
            
                1.42
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.50
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.42
             |                     
            
                1.42
             |                                 
            
                25,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2016
             | 
            
                +0.10 / +4.17%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.43
             |                     
            
                1.42
             |                                 
            
                51,260
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                1.37
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                1.37
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.31
             |                     
            
                1.37
             |                                 
            
                86,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2016
             | 
            
                -0.10 / -4.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                1.37
             |                                 
            
                25,220
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.48
             |                     
            
                1.42
             |                                 
            
                123,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2016
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.54
             |                     
            
                1.42
             |                                 
            
                10,620
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.61
             |                     
            
                1.48
             |                                 
            
                141,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2016
             | 
            
                -0.10 / -3.70%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.71
             |                     
            
                1.48
             |                                 
            
                13,290
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2016
             | 
            
                +0.10 / +3.85%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.69
             |                     
            
                1.54
             |                                 
            
                92,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2016
             | 
            
                -0.10 / -3.70%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.68
             |                     
            
                1.48
             |                                 
            
                20,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                1.54
             |                                 
            
                470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.64
             |                     
            
                1.54
             |                                 
            
                7,580
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.73
             |                     
            
                1.54
             |                                 
            
                2,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                1.54
             |                                 
            
                10,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2016
             | 
            
                -0.10 / -3.57%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.72
             |                     
            
                1.54
             |                                 
            
                33,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |