| 
                 
                    Closing price on 4/12/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.70 | 
                 
                
                    | High | 
                    6.20 | 
                 
                
                    | Low | 
                    5.70 | 
                     
                
                    | Volume | 
                    80 | 
                                 
                
                    | Split-adjusted Price | 
                    5.17 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PIT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/12/2013
             | 
            
                +0.30 / +5.08%
             |             
            
                5.70
             |           
            
                6.20
             |               
            
                5.70
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                80
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                5.90
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                +0.30 / +5.36%
             |             
            
                5.70
             |           
            
                5.90
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                3,440
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                -0.30 / -5.08%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                4.67
             |                                 
            
                210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                -0.20 / -3.28%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                4.92
             |                                 
            
                13,610
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                -0.10 / -1.61%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                5.08
             |                                 
            
                12,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2013
             | 
            
                -0.10 / -1.59%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.10
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2013
             | 
            
                -0.10 / -1.56%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.20
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                2,190
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2013
             | 
            
                +0.10 / +1.59%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                15,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2013
             | 
            
                +0.10 / +1.61%
             |             
            
                6.10
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                5.25
             |                                 
            
                1,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2013
             | 
            
                +0.10 / +1.64%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2013
             | 
            
                -0.30 / -4.69%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                6.10
             |                           
            
                6.10
             | 
            
                6.10
             |                     
            
                5.08
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2013
             | 
            
                +0.20 / +3.23%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2013
             | 
            
                +0.00 / +0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                290
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2013
             | 
            
                -0.20 / -3.13%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                5.17
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.40
             |           
            
                6.50
             |               
            
                6.10
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.40
             |               
            
                6.10
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                70
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2013
             | 
            
                -0.10 / -1.54%
             |             
            
                6.30
             |           
            
                6.40
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.42
             |                                 
            
                2,550
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.42
             |                                 
            
                30
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.42
             |                                 
            
                4,080
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2013
             | 
            
                +0.10 / +1.56%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.42
             |                                 
            
                1,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2013
             | 
            
                -0.10 / -1.54%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.10
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                5.33
             |                                 
            
                620
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2013
             | 
            
                +0.10 / +1.56%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.42
             |                                 
            
                1,330
             |  
            
                 
             |                                                              
             
    
         
    
    
 |