| 
                 
                    Closing price on 7/20/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    34.90 | 
                 
                
                    | High | 
                    36.00 | 
                 
                
                    | Low | 
                    34.30 | 
                     
                
                    | Volume | 
                    95,500 | 
                                 
                
                    | Split-adjusted Price | 
                    6.59 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/20/2012
             | 
            
                +1.30 / +3.78%
             |             
            
                34.90
             |           
            
                36.00
             |               
            
                34.30
             |                           
            
                35.70
             | 
            
                35.70
             |                     
            
                6.59
             |                                 
            
                95,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2012
             | 
            
                +0.80 / +2.38%
             |             
            
                33.60
             |           
            
                34.40
             |               
            
                33.00
             |                           
            
                34.40
             | 
            
                34.40
             |                     
            
                6.35
             |                                 
            
                18,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/18/2012
             | 
            
                +0.40 / +1.20%
             |             
            
                33.70
             |           
            
                33.70
             |               
            
                32.10
             |                           
            
                33.60
             | 
            
                33.60
             |                     
            
                6.20
             |                                 
            
                10,550
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2012
             | 
            
                +0.40 / +1.22%
             |             
            
                33.00
             |           
            
                33.20
             |               
            
                31.60
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                6.13
             |                                 
            
                28,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2012
             | 
            
                +0.10 / +0.31%
             |             
            
                32.70
             |           
            
                32.90
             |               
            
                32.00
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                6.05
             |                                 
            
                35,220
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2012
             | 
            
                +0.20 / +0.62%
             |             
            
                31.90
             |           
            
                32.80
             |               
            
                30.90
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                6.04
             |                                 
            
                15,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2012
             | 
            
                +0.60 / +1.88%
             |             
            
                32.70
             |           
            
                32.70
             |               
            
                32.50
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                6.00
             |                                 
            
                13,610
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2012
             | 
            
                +0.60 / +1.92%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                31.50
             |                           
            
                31.90
             | 
            
                31.90
             |                     
            
                5.89
             |                                 
            
                15,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2012
             | 
            
                -0.90 / -2.80%
             |             
            
                31.50
             |           
            
                32.90
             |               
            
                31.30
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                5.78
             |                                 
            
                5,130
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2012
             | 
            
                0.00 / 0.00%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                31.50
             |                           
            
                32.20
             | 
            
                32.20
             |                     
            
                5.94
             |                                 
            
                4,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2012
             | 
            
                -1.60 / -4.73%
             |             
            
                33.70
             |           
            
                33.80
             |               
            
                32.20
             |                           
            
                32.20
             | 
            
                32.20
             |                     
            
                5.94
             |                                 
            
                3,850
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2012
             | 
            
                +1.10 / +3.36%
             |             
            
                32.70
             |           
            
                34.30
             |               
            
                31.60
             |                           
            
                33.80
             | 
            
                33.80
             |                     
            
                6.24
             |                                 
            
                16,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2012
             | 
            
                -0.60 / -1.80%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                32.70
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                6.04
             |                                 
            
                2,020
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2012
             | 
            
                -0.60 / -1.77%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                32.40
             |                           
            
                33.30
             | 
            
                33.30
             |                     
            
                6.15
             |                                 
            
                70
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2012
             | 
            
                0.00 / 0.00%
             |             
            
                34.40
             |           
            
                34.40
             |               
            
                32.40
             |                           
            
                33.90
             | 
            
                33.90
             |                     
            
                6.26
             |                                 
            
                1,530
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2012
             | 
            
                +0.90 / +2.73%
             |             
            
                33.90
             |           
            
                33.90
             |               
            
                33.90
             |                           
            
                33.90
             | 
            
                33.90
             |                     
            
                6.26
             |                                 
            
                1,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2012
             | 
            
                -0.30 / -0.90%
             |             
            
                32.20
             |           
            
                33.50
             |               
            
                31.70
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.09
             |                                 
            
                8,910
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2012
             | 
            
                -0.20 / -0.60%
             |             
            
                33.60
             |           
            
                33.60
             |               
            
                32.30
             |                           
            
                33.30
             | 
            
                33.30
             |                     
            
                6.15
             |                                 
            
                4,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2012
             | 
            
                +0.10 / +0.30%
             |             
            
                33.20
             |           
            
                34.00
             |               
            
                31.90
             |                           
            
                33.50
             | 
            
                33.50
             |                     
            
                6.18
             |                                 
            
                570
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2012
             | 
            
                -0.50 / -1.47%
             |             
            
                32.40
             |           
            
                33.50
             |               
            
                32.40
             |                           
            
                33.40
             | 
            
                33.40
             |                     
            
                6.17
             |                                 
            
                2,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2012
             | 
            
                +0.90 / +2.73%
             |             
            
                33.80
             |           
            
                34.00
             |               
            
                33.80
             |                           
            
                33.90
             | 
            
                33.90
             |                     
            
                6.26
             |                                 
            
                30,130
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2012
             | 
            
                -0.60 / -1.79%
             |             
            
                33.90
             |           
            
                33.90
             |               
            
                32.40
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.09
             |                                 
            
                15,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2012
             | 
            
                -0.40 / -1.18%
             |             
            
                32.60
             |           
            
                33.60
             |               
            
                32.50
             |                           
            
                33.60
             | 
            
                33.60
             |                     
            
                6.20
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2012
             | 
            
                -0.10 / -0.29%
             |             
            
                34.00
             |           
            
                34.40
             |               
            
                32.40
             |                           
            
                34.00
             | 
            
                34.00
             |                     
            
                6.28
             |                                 
            
                47,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2012
             | 
            
                -0.70 / -2.01%
             |             
            
                33.50
             |           
            
                34.30
             |               
            
                33.10
             |                           
            
                34.10
             | 
            
                34.10
             |                     
            
                6.29
             |                                 
            
                5,470
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2012
             | 
            
                +0.70 / +2.05%
             |             
            
                34.80
             |           
            
                35.00
             |               
            
                32.40
             |                           
            
                34.80
             | 
            
                34.80
             |                     
            
                6.42
             |                                 
            
                180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2012
             | 
            
                +1.00 / +3.02%
             |             
            
                34.60
             |           
            
                34.60
             |               
            
                32.50
             |                           
            
                34.10
             | 
            
                34.10
             |                     
            
                6.29
             |                                 
            
                2,480
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2012
             | 
            
                -1.40 / -4.06%
             |             
            
                34.90
             |           
            
                34.90
             |               
            
                33.10
             |                           
            
                33.10
             | 
            
                33.10
             |                     
            
                6.11
             |                                 
            
                199,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2012
             | 
            
                -0.30 / -0.86%
             |             
            
                33.30
             |           
            
                34.60
             |               
            
                33.20
             |                           
            
                34.50
             | 
            
                34.50
             |                     
            
                6.37
             |                                 
            
                1,840
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                35.30
             |           
            
                35.30
             |               
            
                33.10
             |                           
            
                34.80
             | 
            
                34.80
             |                     
            
                6.42
             |                                 
            
                6,070
             |  
            
                 
             |                                                              
             
    
         
    
    
 |