| 
                 
                    Closing price on 6/20/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.50 | 
                 
                
                    | High | 
                    5.50 | 
                 
                
                    | Low | 
                    5.30 | 
                     
                
                    | Volume | 
                    269,400 | 
                                 
                
                    | Split-adjusted Price | 
                    2.14 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VGS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/20/2013
             | 
            
                -0.20 / -3.64%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.38
             |                     
            
                2.14
             |                                 
            
                269,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2013
             | 
            
                -0.10 / -1.79%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                2.23
             |                                 
            
                277,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2013
             | 
            
                +0.10 / +1.82%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.30
             |                           
            
                5.60
             | 
            
                5.46
             |                     
            
                2.27
             |                                 
            
                480,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2013
             | 
            
                -0.20 / -3.51%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.40
             |                           
            
                5.50
             | 
            
                5.54
             |                     
            
                2.23
             |                                 
            
                888,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2013
             | 
            
                -0.10 / -1.72%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.76
             |                     
            
                2.31
             |                                 
            
                518,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.74
             |                     
            
                2.35
             |                                 
            
                583,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.83
             |                     
            
                2.35
             |                                 
            
                720,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.80
             | 
            
                5.73
             |                     
            
                2.35
             |                                 
            
                803,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2013
             | 
            
                -0.20 / -3.33%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.88
             |                     
            
                2.35
             |                                 
            
                1,244,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2013
             | 
            
                -0.10 / -1.64%
             |             
            
                5.50
             |           
            
                6.10
             |               
            
                5.50
             |                           
            
                6.00
             | 
            
                5.97
             |                     
            
                2.43
             |                                 
            
                1,044,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2013
             | 
            
                -0.10 / -1.61%
             |             
            
                5.50
             |           
            
                6.20
             |               
            
                5.50
             |                           
            
                6.10
             | 
            
                6.04
             |                     
            
                2.47
             |                                 
            
                824,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2013
             | 
            
                +0.30 / +5.08%
             |             
            
                5.80
             |           
            
                6.20
             |               
            
                5.80
             |                           
            
                6.20
             | 
            
                5.94
             |                     
            
                2.51
             |                                 
            
                853,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2013
             | 
            
                -0.30 / -4.84%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                5.80
             |                           
            
                5.90
             | 
            
                6.01
             |                     
            
                2.39
             |                                 
            
                1,067,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2013
             | 
            
                +0.10 / +1.64%
             |             
            
                6.10
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.20
             | 
            
                6.18
             |                     
            
                2.51
             |                                 
            
                1,128,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2013
             | 
            
                -0.10 / -1.61%
             |             
            
                6.30
             |           
            
                6.50
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.29
             |                     
            
                2.47
             |                                 
            
                1,838,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2013
             | 
            
                +0.50 / +8.77%
             |             
            
                5.70
             |           
            
                6.20
             |               
            
                5.70
             |                           
            
                6.20
             | 
            
                5.92
             |                     
            
                2.51
             |                                 
            
                1,782,538
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2013
             | 
            
                -0.20 / -3.39%
             |             
            
                5.90
             |           
            
                6.10
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.90
             |                     
            
                2.31
             |                                 
            
                1,511,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2013
             | 
            
                -0.10 / -1.67%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.84
             |                     
            
                2.39
             |                                 
            
                1,473,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2013
             | 
            
                +0.30 / +5.26%
             |             
            
                5.60
             |           
            
                6.10
             |               
            
                5.60
             |                           
            
                6.00
             | 
            
                5.87
             |                     
            
                2.39
             |                                 
            
                1,952,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2013
             | 
            
                +0.10 / +1.79%
             |             
            
                5.50
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.55
             |                     
            
                2.27
             |                                 
            
                817,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2013
             | 
            
                +0.20 / +3.70%
             |             
            
                5.40
             |           
            
                5.80
             |               
            
                5.30
             |                           
            
                5.60
             | 
            
                5.58
             |                     
            
                2.23
             |                                 
            
                2,044,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2013
             | 
            
                -0.10 / -1.82%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.50
             |                     
            
                2.15
             |                                 
            
                754,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2013
             | 
            
                +0.30 / +5.77%
             |             
            
                5.20
             |           
            
                5.60
             |               
            
                5.20
             |                           
            
                5.50
             | 
            
                5.43
             |                     
            
                2.19
             |                                 
            
                1,344,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2013
             | 
            
                +0.10 / +1.96%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.16
             |                     
            
                2.07
             |                                 
            
                211,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.17
             |                     
            
                2.03
             |                                 
            
                352,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.12
             |                     
            
                2.03
             |                                 
            
                305,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2013
             | 
            
                +0.10 / +2.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                5.00
             |                           
            
                5.10
             | 
            
                5.08
             |                     
            
                2.03
             |                                 
            
                241,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2013
             | 
            
                -0.20 / -3.85%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                5.05
             |                     
            
                1.99
             |                                 
            
                388,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2013
             | 
            
                +0.10 / +1.96%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.18
             |                     
            
                2.07
             |                                 
            
                208,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2013
             | 
            
                -0.10 / -1.92%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.16
             |                     
            
                2.03
             |                                 
            
                357,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |