| 
                 
                    Closing price on 5/22/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    31.40 | 
                 
                
                    | High | 
                    31.50 | 
                 
                
                    | Low | 
                    31.00 | 
                     
                
                    | Volume | 
                    91,360 | 
                                 
                
                    | Split-adjusted Price | 
                    6.16 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/22/2013
             | 
            
                -0.10 / -0.32%
             |             
            
                31.40
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                91,360
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2013
             | 
            
                -0.30 / -0.96%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.10
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                6.18
             |                                 
            
                17,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2013
             | 
            
                +0.20 / +0.64%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                31.20
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                6.24
             |                                 
            
                25,240
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2013
             | 
            
                +0.20 / +0.65%
             |             
            
                31.80
             |           
            
                31.80
             |               
            
                31.00
             |                           
            
                31.20
             | 
            
                31.20
             |                     
            
                6.20
             |                                 
            
                56,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2013
             | 
            
                +1.60 / +5.44%
             |             
            
                30.00
             |           
            
                31.20
             |               
            
                29.90
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                80,320
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2013
             | 
            
                +0.10 / +0.34%
             |             
            
                29.60
             |           
            
                29.60
             |               
            
                29.30
             |                           
            
                29.40
             | 
            
                29.40
             |                     
            
                5.84
             |                                 
            
                17,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                29.70
             |           
            
                29.70
             |               
            
                29.20
             |                           
            
                29.30
             | 
            
                29.30
             |                     
            
                5.82
             |                                 
            
                3,170
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                -0.40 / -1.35%
             |             
            
                29.70
             |           
            
                29.70
             |               
            
                29.30
             |                           
            
                29.30
             | 
            
                29.30
             |                     
            
                5.82
             |                                 
            
                36,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                -0.10 / -0.34%
             |             
            
                29.70
             |           
            
                29.70
             |               
            
                29.20
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                5.90
             |                                 
            
                1,920
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                +0.50 / +1.71%
             |             
            
                29.50
             |           
            
                29.90
             |               
            
                29.50
             |                           
            
                29.80
             | 
            
                29.80
             |                     
            
                5.92
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                -0.20 / -0.68%
             |             
            
                29.80
             |           
            
                29.80
             |               
            
                29.20
             |                           
            
                29.30
             | 
            
                29.30
             |                     
            
                5.82
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                -0.20 / -0.67%
             |             
            
                29.70
             |           
            
                30.00
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                5.86
             |                                 
            
                26,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                29.50
             |           
            
                29.90
             |               
            
                29.50
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                5.90
             |                                 
            
                30,790
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                +0.40 / +1.37%
             |             
            
                29.90
             |           
            
                29.90
             |               
            
                29.20
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                5.90
             |                                 
            
                4,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                -0.20 / -0.68%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                29.30
             |                           
            
                29.30
             | 
            
                29.30
             |                     
            
                5.82
             |                                 
            
                3,240
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                -0.50 / -1.67%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                5.86
             |                                 
            
                6,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                -0.10 / -0.33%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                5.96
             |                                 
            
                6,930
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                -0.10 / -0.33%
             |             
            
                30.30
             |           
            
                30.90
             |               
            
                30.10
             |                           
            
                30.10
             | 
            
                30.10
             |                     
            
                5.98
             |                                 
            
                16,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                -0.10 / -0.33%
             |             
            
                30.80
             |           
            
                30.80
             |               
            
                30.20
             |                           
            
                30.20
             | 
            
                30.20
             |                     
            
                6.00
             |                                 
            
                31,350
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                30.30
             |           
            
                30.50
             |               
            
                30.00
             |                           
            
                30.30
             | 
            
                30.30
             |                     
            
                6.02
             |                                 
            
                22,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -0.70 / -2.26%
             |             
            
                30.60
             |           
            
                30.80
             |               
            
                30.30
             |                           
            
                30.30
             | 
            
                30.30
             |                     
            
                6.02
             |                                 
            
                50,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                +0.20 / +0.65%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                30.60
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                11,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                -0.60 / -1.91%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                30.80
             | 
            
                30.80
             |                     
            
                6.12
             |                                 
            
                48,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                -0.20 / -0.63%
             |             
            
                31.00
             |           
            
                31.80
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                6.24
             |                                 
            
                35,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2013
             | 
            
                -0.70 / -2.17%
             |             
            
                32.00
             |           
            
                32.30
             |               
            
                31.50
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                6.28
             |                                 
            
                52,190
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                +0.70 / +2.22%
             |             
            
                31.30
             |           
            
                32.30
             |               
            
                31.30
             |                           
            
                32.30
             | 
            
                32.30
             |                     
            
                6.42
             |                                 
            
                45,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                +0.10 / +0.32%
             |             
            
                31.90
             |           
            
                32.40
             |               
            
                31.40
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                6.28
             |                                 
            
                68,750
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                -0.50 / -1.56%
             |             
            
                31.50
             |           
            
                32.00
             |               
            
                31.10
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                6.26
             |                                 
            
                183,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                -0.50 / -1.54%
             |             
            
                31.50
             |           
            
                32.10
             |               
            
                31.30
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                6.36
             |                                 
            
                80,650
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                32.50
             |           
            
                32.50
             |               
            
                32.00
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                6.46
             |                                 
            
                4,940
             |  
            
                 
             |                                                              
             
    
         
    
    
 |