| 
                 
                    Closing price on 4/18/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    35.90 | 
                 
                
                    | High | 
                    35.90 | 
                 
                
                    | Low | 
                    34.70 | 
                     
                
                    | Volume | 
                    116,850 | 
                                 
                
                    | Split-adjusted Price | 
                    6.63 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/18/2012
             | 
            
                +1.70 / +4.97%
             |             
            
                35.90
             |           
            
                35.90
             |               
            
                34.70
             |                           
            
                35.90
             | 
            
                35.90
             |                     
            
                6.63
             |                                 
            
                116,850
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2012
             | 
            
                +1.60 / +4.91%
             |             
            
                32.60
             |           
            
                34.20
             |               
            
                32.60
             |                           
            
                34.20
             | 
            
                34.20
             |                     
            
                6.31
             |                                 
            
                98,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2012
             | 
            
                +0.60 / +1.88%
             |             
            
                32.00
             |           
            
                33.20
             |               
            
                32.00
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                6.02
             |                                 
            
                88,570
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                32.10
             |           
            
                32.10
             |               
            
                31.70
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                31,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2012
             | 
            
                0.00 / 0.00%
             |             
            
                32.20
             |           
            
                32.50
             |               
            
                31.50
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                7,830
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2012
             | 
            
                +0.50 / +1.59%
             |             
            
                31.50
             |           
            
                32.00
             |               
            
                31.40
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                62,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2012
             | 
            
                +0.50 / +1.61%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.40
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                5.81
             |                                 
            
                2,370
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2012
             | 
            
                -0.10 / -0.32%
             |             
            
                30.90
             |           
            
                32.00
             |               
            
                30.70
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                5.72
             |                                 
            
                10,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2012
             | 
            
                -0.30 / -0.96%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.10
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                5.74
             |                                 
            
                12,410
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2012
             | 
            
                -0.60 / -1.88%
             |             
            
                31.00
             |           
            
                31.90
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                5.80
             |                                 
            
                13,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                31.50
             |           
            
                32.00
             |               
            
                31.50
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                2,020
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2012
             | 
            
                +0.60 / +1.91%
             |             
            
                31.50
             |           
            
                32.90
             |               
            
                31.00
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2012
             | 
            
                -0.10 / -0.32%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                5.80
             |                                 
            
                308,980
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                -0.20 / -0.63%
             |             
            
                31.60
             |           
            
                31.60
             |               
            
                31.50
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                5.81
             |                                 
            
                9,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2012
             | 
            
                -0.70 / -2.16%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.60
             |                           
            
                31.70
             | 
            
                31.70
             |                     
            
                5.85
             |                                 
            
                19,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2012
             | 
            
                -0.10 / -0.31%
             |             
            
                32.50
             |           
            
                32.50
             |               
            
                31.60
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                5.98
             |                                 
            
                23,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2012
             | 
            
                +0.50 / +1.56%
             |             
            
                32.00
             |           
            
                32.50
             |               
            
                31.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                6.00
             |                                 
            
                33,230
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2012
             | 
            
                0.00 / 0.00%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.60
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                39,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2012
             | 
            
                0.00 / 0.00%
             |             
            
                31.50
             |           
            
                32.30
             |               
            
                31.50
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                41,780
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                32.00
             |           
            
                32.20
             |               
            
                31.00
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                24,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2012
             | 
            
                0.00 / 0.00%
             |             
            
                31.20
             |           
            
                32.00
             |               
            
                31.20
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                4,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                0.00 / 0.00%
             |             
            
                31.90
             |           
            
                32.00
             |               
            
                31.50
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                2,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2012
             | 
            
                +0.40 / +1.27%
             |             
            
                31.00
             |           
            
                32.40
             |               
            
                31.00
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                29,490
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2012
             | 
            
                +0.50 / +1.61%
             |             
            
                30.60
             |           
            
                31.60
             |               
            
                30.60
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                5.83
             |                                 
            
                7,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2012
             | 
            
                +0.10 / +0.32%
             |             
            
                31.00
             |           
            
                31.80
             |               
            
                30.90
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                5.74
             |                                 
            
                48,550
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                5.72
             |                                 
            
                14,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2012
             | 
            
                -1.00 / -3.13%
             |             
            
                31.00
             |           
            
                32.00
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                5.72
             |                                 
            
                450,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2012
             | 
            
                -0.20 / -0.62%
             |             
            
                32.20
             |           
            
                32.20
             |               
            
                31.50
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                5.91
             |                                 
            
                94,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2012
             | 
            
                -0.30 / -0.92%
             |             
            
                32.90
             |           
            
                32.90
             |               
            
                32.00
             |                           
            
                32.20
             | 
            
                32.20
             |                     
            
                5.94
             |                                 
            
                106,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2012
             | 
            
                -0.50 / -1.52%
             |             
            
                33.00
             |           
            
                33.50
             |               
            
                32.00
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                6.00
             |                                 
            
                14,480
             |  
            
                 
             |                                                              
             
    
         
    
    
 |