| 
                 
                    Closing price on 2/27/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.60 | 
                 
                
                    | High | 
                    7.70 | 
                 
                
                    | Low | 
                    7.40 | 
                     
                
                    | Volume | 
                    171,190 | 
                                 
                
                    | Split-adjusted Price | 
                    5.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PIT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/27/2012
             | 
            
                +0.30 / +4.05%
             |             
            
                7.60
             |           
            
                7.70
             |               
            
                7.40
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                5.80
             |                                 
            
                171,190
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2012
             | 
            
                +0.10 / +1.37%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.57
             |                                 
            
                17,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2012
             | 
            
                +0.20 / +2.82%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.50
             |                                 
            
                21,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2012
             | 
            
                +0.10 / +1.43%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                8,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                910
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2012
             | 
            
                -0.10 / -1.41%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                12,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2012
             | 
            
                +0.10 / +1.43%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.80
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                23,750
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2012
             | 
            
                -0.10 / -1.41%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                10,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2012
             | 
            
                -0.10 / -1.39%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                12,560
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2012
             | 
            
                +0.30 / +4.35%
             |             
            
                6.80
             |           
            
                7.20
             |               
            
                6.80
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                5.42
             |                                 
            
                8,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2012
             | 
            
                +0.10 / +1.47%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                5.20
             |                                 
            
                4,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2012
             | 
            
                -0.20 / -2.86%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                5.12
             |                                 
            
                9,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.80
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                7,890
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2012
             | 
            
                -0.10 / -1.41%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                6,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2012
             | 
            
                +0.10 / +1.43%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                2,550
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                2,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/3/2012
             | 
            
                -0.20 / -2.78%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                27,590
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2012
             | 
            
                +0.20 / +2.86%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                5.42
             |                                 
            
                2,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2012
             | 
            
                -0.30 / -4.11%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2012
             | 
            
                +0.00 / +0.00%
             |             
            
                7.30
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.50
             |                                 
            
                4,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2012
             | 
            
                +0.20 / +2.82%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.50
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2012
             | 
            
                -0.20 / -2.74%
             |             
            
                7.10
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                5,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2012
             | 
            
                +0.30 / +4.29%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.20
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.50
             |                                 
            
                5,030
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                3,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                4,830
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2012
             | 
            
                -0.10 / -1.41%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.27
             |                                 
            
                3,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2012
             | 
            
                +0.20 / +2.90%
             |             
            
                7.10
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.10
             | 
            
                7.10
             |                     
            
                5.35
             |                                 
            
                13,910
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2012
             | 
            
                -0.30 / -4.17%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.90
             |                     
            
                5.20
             |                                 
            
                7,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2012
             | 
            
                -0.20 / -2.70%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.20
             |                     
            
                5.42
             |                                 
            
                3,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2012
             | 
            
                0.00 / 0.00%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.57
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
         
    
    
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