| 
                 
                    Closing price on 1/25/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.40 | 
                 
                
                    | High | 
                    12.40 | 
                 
                
                    | Low | 
                    12.10 | 
                     
                
                    | Volume | 
                    81,900 | 
                                 
                
                    | Split-adjusted Price | 
                    7.92 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PIT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/25/2011
             | 
            
                -0.30 / -2.42%
             |             
            
                12.40
             |           
            
                12.40
             |               
            
                12.10
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                7.92
             |                                 
            
                81,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2011
             | 
            
                -0.20 / -1.59%
             |             
            
                12.60
             |           
            
                12.90
             |               
            
                12.30
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                8.12
             |                                 
            
                21,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2011
             | 
            
                -0.10 / -0.79%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                8.25
             |                                 
            
                14,440
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2011
             | 
            
                -0.10 / -0.78%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                8.32
             |                                 
            
                18,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2011
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                13.40
             |               
            
                12.60
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                8.38
             |                                 
            
                14,130
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2011
             | 
            
                -0.40 / -3.03%
             |             
            
                13.20
             |           
            
                13.50
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                8.38
             |                                 
            
                21,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2011
             | 
            
                +0.60 / +4.76%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.10
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                8.64
             |                                 
            
                90,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                12.70
             |               
            
                12.50
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                8.25
             |                                 
            
                45,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2011
             | 
            
                +0.10 / +0.80%
             |             
            
                12.40
             |           
            
                12.60
             |               
            
                12.40
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                8.25
             |                                 
            
                17,380
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2011
             | 
            
                +0.20 / +1.63%
             |             
            
                12.10
             |           
            
                12.60
             |               
            
                12.10
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                8.18
             |                                 
            
                30,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2011
             | 
            
                -0.40 / -3.15%
             |             
            
                12.80
             |           
            
                12.80
             |               
            
                12.30
             |                           
            
                12.30
             | 
            
                12.30
             |                     
            
                8.05
             |                                 
            
                33,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2011
             | 
            
                -0.10 / -0.78%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.50
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                8.32
             |                                 
            
                75,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2011
             | 
            
                +0.10 / +0.79%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                8.38
             |                                 
            
                10,980
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2011
             | 
            
                -0.20 / -1.55%
             |             
            
                12.90
             |           
            
                13.20
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                8.32
             |                                 
            
                25,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2011
             | 
            
                -0.30 / -2.27%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                8.45
             |                                 
            
                29,930
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2011
             | 
            
                -0.20 / -1.49%
             |             
            
                13.40
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                8.64
             |                                 
            
                14,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |