| 
                 
                    Closing price on 6/11/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.60 | 
                 
                
                    | High | 
                    5.90 | 
                 
                
                    | Low | 
                    5.60 | 
                     
                
                    | Volume | 
                    1,530 | 
                                 
                
                    | Split-adjusted Price | 
                    4.92 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PIT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/11/2013
             | 
            
                +0.30 / +5.36%
             |             
            
                5.60
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                1,530
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                4.67
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2013
             | 
            
                -0.20 / -3.45%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                4.67
             |                                 
            
                3,850
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2013
             | 
            
                +0.10 / +1.75%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                4.83
             |                                 
            
                8,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                340
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                50
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2013
             | 
            
                -0.20 / -3.39%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                12,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.60
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                4,290
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2013
             | 
            
                +0.10 / +1.72%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                11,580
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.60
             |           
            
                6.00
             |               
            
                5.60
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                4.83
             |                                 
            
                4,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.80
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                4.83
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2013
             | 
            
                +0.10 / +1.75%
             |             
            
                5.70
             |           
            
                5.80
             |               
            
                5.70
             |                           
            
                5.80
             | 
            
                5.80
             |                     
            
                4.83
             |                                 
            
                150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2013
             | 
            
                +0.10 / +1.79%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.70
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                60
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2013
             | 
            
                +0.00 / +0.00%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                4.67
             |                                 
            
                930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2013
             | 
            
                +0.10 / +1.82%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                4.67
             |                                 
            
                390
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                -0.20 / -3.51%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                4.58
             |                                 
            
                17,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                -0.30 / -5.00%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                4.75
             |                                 
            
                32,880
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                -0.30 / -4.76%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.00
             |                                 
            
                9,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                -0.10 / -1.56%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                1,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                +0.10 / +1.59%
             |             
            
                6.20
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                1,270
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                -0.10 / -1.56%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                5,040
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                +0.40 / +6.67%
             |             
            
                6.10
             |           
            
                6.40
             |               
            
                6.10
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                2,810
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                -0.30 / -4.76%
             |             
            
                6.00
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                5.00
             |                                 
            
                4,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                -0.10 / -1.56%
             |             
            
                6.20
             |           
            
                6.30
             |               
            
                6.20
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                15,480
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                +0.20 / +3.23%
             |             
            
                6.20
             |           
            
                6.40
             |               
            
                5.90
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                960
             |  
            
                 
             |                                                              
             
    
         
    
    
 |