| 
                 
                    Closing price on 1/28/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.30 | 
                 
                
                    | High | 
                    5.70 | 
                 
                
                    | Low | 
                    5.30 | 
                     
                
                    | Volume | 
                    310,800 | 
                                 
                
                    | Split-adjusted Price | 
                    5.40 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
WSS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/28/2015
             | 
            
                +0.20 / +3.85%
             |             
            
                5.30
             |           
            
                5.70
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.50
             |                     
            
                5.40
             |                                 
            
                310,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                5.20
             |                                 
            
                102,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                5.20
             |                                 
            
                47,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.33
             |                     
            
                5.20
             |                                 
            
                186,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2015
             | 
            
                -0.10 / -1.89%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                5.20
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2015
             | 
            
                +0.20 / +3.92%
             |             
            
                5.20
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.31
             |                     
            
                5.30
             |                                 
            
                63,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2015
             | 
            
                -0.20 / -3.77%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.10
             |                     
            
                5.10
             |                                 
            
                79,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.20
             |                     
            
                5.30
             |                                 
            
                24,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2015
             | 
            
                +0.10 / +1.92%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.21
             |                     
            
                5.30
             |                                 
            
                208,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2015
             | 
            
                +0.10 / +1.96%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.16
             |                     
            
                5.20
             |                                 
            
                45,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2015
             | 
            
                -0.10 / -1.92%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.18
             |                     
            
                5.10
             |                                 
            
                29,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                5.20
             |                                 
            
                79,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2015
             | 
            
                -0.20 / -3.70%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.30
             |                     
            
                5.20
             |                                 
            
                103,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2015
             | 
            
                +0.10 / +1.89%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.36
             |                     
            
                5.40
             |                                 
            
                105,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2015
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                5.30
             |                                 
            
                217,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2015
             | 
            
                -0.10 / -1.85%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.29
             |                     
            
                5.30
             |                                 
            
                114,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2015
             | 
            
                +0.20 / +3.85%
             |             
            
                5.10
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.40
             | 
            
                5.24
             |                     
            
                5.40
             |                                 
            
                199,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2015
             | 
            
                -0.10 / -1.89%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.25
             |                     
            
                5.20
             |                                 
            
                32,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/31/2014
             | 
            
                +0.30 / +6.00%
             |             
            
                5.10
             |           
            
                5.30
             |               
            
                5.00
             |                           
            
                5.30
             | 
            
                5.15
             |                     
            
                5.30
             |                                 
            
                298,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2014
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                48,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2014
             | 
            
                -0.10 / -1.96%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                5.01
             |                     
            
                5.00
             |                                 
            
                61,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2014
             | 
            
                -0.10 / -1.92%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.00
             |                           
            
                5.10
             | 
            
                5.00
             |                     
            
                5.10
             |                                 
            
                158,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/25/2014
             | 
            
                0.00 / 0.00%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.10
             |                           
            
                5.20
             | 
            
                5.15
             |                     
            
                5.20
             |                                 
            
                43,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2014
             | 
            
                -0.10 / -1.89%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                5.20
             |                                 
            
                263,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2014
             | 
            
                -0.10 / -1.85%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.21
             |                     
            
                5.30
             |                                 
            
                121,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2014
             | 
            
                +0.10 / +1.89%
             |             
            
                5.20
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.40
             | 
            
                5.25
             |                     
            
                5.40
             |                                 
            
                96,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2014
             | 
            
                -0.10 / -1.85%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.24
             |                     
            
                5.30
             |                                 
            
                97,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2014
             | 
            
                +0.10 / +1.89%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.40
             | 
            
                5.23
             |                     
            
                5.40
             |                                 
            
                112,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2014
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.00
             |                           
            
                5.30
             | 
            
                5.27
             |                     
            
                5.30
             |                                 
            
                152,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2014
             | 
            
                -0.20 / -3.64%
             |             
            
                5.40
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.32
             |                     
            
                5.30
             |                                 
            
                175,700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |