| 
                 
                    Closing price on 2/21/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    32.30 | 
                 
                
                    | High | 
                    33.80 | 
                 
                
                    | Low | 
                    30.90 | 
                     
                
                    | Volume | 
                    30,650 | 
                                 
                
                    | Split-adjusted Price | 
                    6.21 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PDR Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/21/2011
             | 
            
                +1.30 / +4.00%
             |             
            
                32.30
             |           
            
                33.80
             |               
            
                30.90
             |                           
            
                33.80
             | 
            
                33.80
             |                     
            
                6.21
             |                                 
            
                30,650
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2011
             | 
            
                +0.10 / +0.31%
             |             
            
                30.80
             |           
            
                33.80
             |               
            
                30.80
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                5.97
             |                                 
            
                92,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2011
             | 
            
                -0.30 / -0.92%
             |             
            
                32.70
             |           
            
                32.70
             |               
            
                32.40
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                5.95
             |                                 
            
                12,150
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2011
             | 
            
                -1.20 / -3.54%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.70
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                6.01
             |                                 
            
                13,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2011
             | 
            
                +0.70 / +2.11%
             |             
            
                33.30
             |           
            
                33.90
             |               
            
                32.90
             |                           
            
                33.90
             | 
            
                33.90
             |                     
            
                6.23
             |                                 
            
                11,210
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2011
             | 
            
                -0.80 / -2.35%
             |             
            
                33.90
             |           
            
                34.90
             |               
            
                33.20
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                6.10
             |                                 
            
                63,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2011
             | 
            
                +0.80 / +2.41%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                33.20
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                9,520
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2011
             | 
            
                -0.80 / -2.35%
             |             
            
                33.80
             |           
            
                33.80
             |               
            
                33.20
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                6.10
             |                                 
            
                13,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2011
             | 
            
                0.00 / 0.00%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                4,990
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2011
             | 
            
                +1.00 / +3.03%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                32.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                54,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2011
             | 
            
                +0.50 / +1.54%
             |             
            
                33.00
             |           
            
                33.10
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.06
             |                                 
            
                4,510
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2011
             | 
            
                +0.10 / +0.31%
             |             
            
                32.50
             |           
            
                32.50
             |               
            
                32.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                5.97
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2011
             | 
            
                +0.10 / +0.31%
             |             
            
                32.40
             |           
            
                32.50
             |               
            
                32.40
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                5.95
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2011
             | 
            
                -0.20 / -0.62%
             |             
            
                32.00
             |           
            
                32.70
             |               
            
                32.00
             |                           
            
                32.30
             | 
            
                32.30
             |                     
            
                5.93
             |                                 
            
                8,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2011
             | 
            
                -0.80 / -2.40%
             |             
            
                33.80
             |           
            
                34.80
             |               
            
                32.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                5.97
             |                                 
            
                64,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2011
             | 
            
                0.00 / 0.00%
             |             
            
                33.40
             |           
            
                34.00
             |               
            
                33.30
             |                           
            
                33.30
             | 
            
                33.30
             |                     
            
                6.12
             |                                 
            
                9,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2011
             | 
            
                -0.10 / -0.30%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                33.00
             |                           
            
                33.30
             | 
            
                33.30
             |                     
            
                6.12
             |                                 
            
                7,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2011
             | 
            
                +0.80 / +2.45%
             |             
            
                33.00
             |           
            
                33.80
             |               
            
                33.00
             |                           
            
                33.40
             | 
            
                33.40
             |                     
            
                6.13
             |                                 
            
                3,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2011
             | 
            
                -0.60 / -1.81%
             |             
            
                33.20
             |           
            
                33.50
             |               
            
                32.60
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                5.99
             |                                 
            
                60,760
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2011
             | 
            
                +0.20 / +0.61%
             |             
            
                33.00
             |           
            
                33.20
             |               
            
                33.00
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                6.10
             |                                 
            
                9,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2011
             | 
            
                -0.10 / -0.30%
             |             
            
                33.20
             |           
            
                33.20
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.06
             |                                 
            
                13,140
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2011
             | 
            
                +0.10 / +0.30%
             |             
            
                33.00
             |           
            
                33.10
             |               
            
                32.50
             |                           
            
                33.10
             | 
            
                33.10
             |                     
            
                6.08
             |                                 
            
                11,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2011
             | 
            
                -0.20 / -0.60%
             |             
            
                34.10
             |           
            
                34.70
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.06
             |                                 
            
                53,260
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2011
             | 
            
                -0.30 / -0.90%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                33.20
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                6.10
             |                                 
            
                13,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2011
             | 
            
                -0.50 / -1.47%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                33.50
             |                           
            
                33.50
             | 
            
                33.50
             |                     
            
                6.15
             |                                 
            
                8,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2011
             | 
            
                +1.00 / +3.03%
             |             
            
                33.20
             |           
            
                34.00
             |               
            
                33.20
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                7,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/6/2011
             | 
            
                -1.00 / -2.94%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.06
             |                                 
            
                49,480
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2011
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                9,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2011
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/31/2010
             | 
            
                0.00 / 0.00%
             |             
            
                34.00
             |           
            
                34.10
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.24
             |                                 
            
                21,050
             |  
            
                 
             |                                                              
             
    
         
    
    
 |