| 
                 
                    Closing price on 1/18/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.70 | 
                 
                
                    | High | 
                    2.70 | 
                 
                
                    | Low | 
                    2.60 | 
                     
                
                    | Volume | 
                    112,590 | 
                                 
                
                    | Split-adjusted Price | 
                    2.42 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VOS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/18/2016
             | 
            
                -0.10 / -3.70%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.66
             |                     
            
                2.42
             |                                 
            
                112,590
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.67
             |                     
            
                2.51
             |                                 
            
                64,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.60
             |                     
            
                2.51
             |                                 
            
                30,530
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.66
             |                     
            
                2.51
             |                                 
            
                15,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.63
             |                     
            
                2.51
             |                                 
            
                130,190
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.51
             |                                 
            
                94,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2016
             | 
            
                -0.10 / -3.57%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.51
             |                                 
            
                92,950
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                2.61
             |                                 
            
                38,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.79
             |                     
            
                2.61
             |                                 
            
                21,470
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.75
             |                     
            
                2.61
             |                                 
            
                18,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2016
             | 
            
                +0.10 / +3.70%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.78
             |                     
            
                2.61
             |                                 
            
                54,560
             |            
            
                 
             |                                       
         
    
        
            | 
                12/31/2015
             | 
            
                -0.10 / -3.57%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.74
             |                     
            
                2.51
             |                                 
            
                32,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/30/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.78
             |                     
            
                2.61
             |                                 
            
                23,040
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.75
             |                     
            
                2.61
             |                                 
            
                2,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.75
             |                     
            
                2.61
             |                                 
            
                17,090
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.80
             |                     
            
                2.61
             |                                 
            
                20,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.73
             |                     
            
                2.61
             |                                 
            
                35,120
             |            
            
                 
             |                                       
         
    
        
            | 
                12/23/2015
             | 
            
                -0.10 / -3.45%
             |             
            
                2.80
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.78
             |                     
            
                2.61
             |                                 
            
                50,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2015
             | 
            
                +0.10 / +3.57%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.81
             |                     
            
                2.70
             |                                 
            
                11,700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2015
             | 
            
                -0.10 / -3.45%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.88
             |                     
            
                2.61
             |                                 
            
                8,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.85
             |                     
            
                2.70
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/17/2015
             | 
            
                +0.10 / +3.57%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.70
             |                                 
            
                23,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.89
             |                     
            
                2.61
             |                                 
            
                35,340
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2015
             | 
            
                -0.10 / -3.45%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.81
             |                     
            
                2.61
             |                                 
            
                28,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.70
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/11/2015
             | 
            
                +0.10 / +3.57%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.90
             | 
            
                2.87
             |                     
            
                2.70
             |                                 
            
                93,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/10/2015
             | 
            
                -0.10 / -3.45%
             |             
            
                2.80
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.84
             |                     
            
                2.61
             |                                 
            
                38,010
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2015
             | 
            
                0.00 / 0.00%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.80
             |                           
            
                2.90
             | 
            
                2.85
             |                     
            
                2.70
             |                                 
            
                27,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2015
             | 
            
                +0.10 / +3.57%
             |             
            
                2.70
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.90
             | 
            
                2.81
             |                     
            
                2.70
             |                                 
            
                24,580
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2015
             | 
            
                +0.10 / +3.70%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.70
             |                           
            
                2.80
             | 
            
                2.77
             |                     
            
                2.61
             |                                 
            
                6,490
             |  
            
                 
             |                                                              
             
    
         
    
    
 |