| 
                 
                    Closing price on 12/31/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.50 | 
                 
                
                    | High | 
                    13.50 | 
                 
                
                    | Low | 
                    13.40 | 
                     
                
                    | Volume | 
                    21,120 | 
                                 
                
                    | Split-adjusted Price | 
                    8.77 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PIT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/31/2010
             | 
            
                +0.00 / +0.00%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.40
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                8.77
             |                                 
            
                21,120
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2010
             | 
            
                +0.10 / +0.75%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.30
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                8.77
             |                                 
            
                53,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2010
             | 
            
                -0.10 / -0.75%
             |             
            
                13.40
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                8.71
             |                                 
            
                72,820
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2010
             | 
            
                +0.20 / +1.52%
             |             
            
                13.20
             |           
            
                13.70
             |               
            
                13.20
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                8.77
             |                                 
            
                51,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2010
             | 
            
                +0.10 / +0.76%
             |             
            
                13.20
             |           
            
                13.40
             |               
            
                13.10
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                8.64
             |                                 
            
                65,530
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2010
             | 
            
                -0.10 / -0.76%
             |             
            
                13.00
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                8.58
             |                                 
            
                57,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2010
             | 
            
                -0.30 / -2.22%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                8.64
             |                                 
            
                91,630
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2010
             | 
            
                -0.20 / -1.46%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                8.84
             |                                 
            
                30,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2010
             | 
            
                +0.20 / +1.48%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                13.10
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                8.97
             |                                 
            
                120,730
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2010
             | 
            
                +0.00 / +0.00%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.00
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                8.84
             |                                 
            
                80,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2010
             | 
            
                +0.30 / +2.27%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                12.70
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                8.84
             |                                 
            
                58,370
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2010
             | 
            
                -0.10 / -0.75%
             |             
            
                12.80
             |           
            
                13.30
             |               
            
                12.70
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                8.64
             |                                 
            
                81,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2010
             | 
            
                -0.50 / -3.62%
             |             
            
                13.30
             |           
            
                14.00
             |               
            
                13.20
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                8.71
             |                                 
            
                74,780
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2010
             | 
            
                -0.70 / -4.83%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                13.80
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                9.04
             |                                 
            
                76,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2010
             | 
            
                +0.60 / +4.32%
             |             
            
                14.40
             |           
            
                14.50
             |               
            
                14.30
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                9.49
             |                                 
            
                174,910
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2010
             | 
            
                +0.40 / +2.96%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.00
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                9.10
             |                                 
            
                65,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2010
             | 
            
                +0.20 / +1.50%
             |             
            
                12.80
             |           
            
                13.90
             |               
            
                12.70
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                8.84
             |                                 
            
                105,610
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2010
             | 
            
                -0.60 / -4.32%
             |             
            
                13.60
             |           
            
                13.70
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                8.71
             |                                 
            
                63,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2010
             | 
            
                -0.70 / -4.79%
             |             
            
                14.20
             |           
            
                14.30
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                9.10
             |                                 
            
                282,580
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2010
             | 
            
                -0.10 / -0.68%
             |             
            
                15.00
             |           
            
                15.20
             |               
            
                14.40
             |                           
            
                14.60
             | 
            
                14.60
             |                     
            
                9.56
             |                                 
            
                83,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/3/2010
             | 
            
                +0.70 / +5.00%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                14.30
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                9.63
             |                                 
            
                132,650
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2010
             | 
            
                +0.60 / +4.48%
             |             
            
                13.90
             |           
            
                14.00
             |               
            
                13.60
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                9.17
             |                                 
            
                165,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2010
             | 
            
                +0.60 / +4.69%
             |             
            
                12.90
             |           
            
                13.40
             |               
            
                12.80
             |                           
            
                13.40
             | 
            
                13.40
             |                     
            
                8.77
             |                                 
            
                217,410
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2010
             | 
            
                +0.60 / +4.92%
             |             
            
                12.80
             |           
            
                12.80
             |               
            
                12.60
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                8.38
             |                                 
            
                133,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2010
             | 
            
                -0.10 / -0.81%
             |             
            
                12.10
             |           
            
                12.20
             |               
            
                11.90
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                7.99
             |                                 
            
                28,410
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2010
             | 
            
                -0.10 / -0.81%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.10
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                8.05
             |                                 
            
                35,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2010
             | 
            
                +0.40 / +3.33%
             |             
            
                12.30
             |           
            
                12.50
             |               
            
                12.20
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                8.12
             |                                 
            
                46,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2010
             | 
            
                +0.30 / +2.56%
             |             
            
                11.90
             |           
            
                12.20
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                7.86
             |                                 
            
                36,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2010
             | 
            
                +0.00 / +0.00%
             |             
            
                11.50
             |           
            
                12.00
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                7.66
             |                                 
            
                38,460
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2010
             | 
            
                0.00 / 0.00%
             |             
            
                11.40
             |           
            
                11.70
             |               
            
                11.40
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                7.66
             |                                 
            
                69,050
             |  
            
                 
             |                                                              
             
    
         
    
    
 |