| 
                 
                    Closing price on 4/15/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    31.00 | 
                 
                
                    | High | 
                    31.80 | 
                 
                
                    | Low | 
                    31.00 | 
                     
                
                    | Volume | 
                    35,020 | 
                                 
                
                    | Split-adjusted Price | 
                    6.24 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2013
             | 
            
                +1.40 / +4.50%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                31.10
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                6.46
             |                                 
            
                11,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2013
             | 
            
                -1.90 / -5.76%
             |             
            
                32.80
             |           
            
                33.50
             |               
            
                31.10
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                6.18
             |                                 
            
                45,980
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2013
             | 
            
                +0.40 / +1.23%
             |             
            
                32.80
             |           
            
                33.00
             |               
            
                32.80
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.56
             |                                 
            
                10,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2013
             | 
            
                +1.10 / +3.49%
             |             
            
                31.50
             |           
            
                32.60
             |               
            
                31.50
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                6.48
             |                                 
            
                350
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2013
             | 
            
                -0.50 / -1.56%
             |             
            
                33.80
             |           
            
                33.80
             |               
            
                31.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                6.26
             |                                 
            
                8,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2013
             | 
            
                +0.60 / +1.91%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.00
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                6.36
             |                                 
            
                410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2013
             | 
            
                -2.10 / -6.27%
             |             
            
                33.00
             |           
            
                33.50
             |               
            
                31.40
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                6.24
             |                                 
            
                8,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2013
             | 
            
                -0.20 / -0.59%
             |             
            
                33.50
             |           
            
                33.70
             |               
            
                33.40
             |                           
            
                33.50
             | 
            
                33.50
             |                     
            
                6.66
             |                                 
            
                8,550
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2013
             | 
            
                +0.70 / +2.12%
             |             
            
                32.10
             |           
            
                33.70
             |               
            
                31.90
             |                           
            
                33.70
             | 
            
                33.70
             |                     
            
                6.70
             |                                 
            
                15,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2013
             | 
            
                -0.90 / -2.65%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                6.56
             |                                 
            
                41,260
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2013
             | 
            
                +0.40 / +1.19%
             |             
            
                33.60
             |           
            
                34.10
             |               
            
                33.50
             |                           
            
                33.90
             | 
            
                33.90
             |                     
            
                6.74
             |                                 
            
                85,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2013
             | 
            
                +1.10 / +3.40%
             |             
            
                32.40
             |           
            
                33.90
             |               
            
                32.40
             |                           
            
                33.50
             | 
            
                33.50
             |                     
            
                6.66
             |                                 
            
                76,980
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2013
             | 
            
                +0.90 / +2.86%
             |             
            
                31.00
             |           
            
                32.60
             |               
            
                31.00
             |                           
            
                32.40
             | 
            
                32.40
             |                     
            
                6.44
             |                                 
            
                58,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2013
             | 
            
                +1.00 / +3.28%
             |             
            
                31.70
             |           
            
                31.70
             |               
            
                30.70
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                6.26
             |                                 
            
                2,880
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2013
             | 
            
                -1.30 / -4.09%
             |             
            
                32.00
             |           
            
                32.20
             |               
            
                30.50
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                6.06
             |                                 
            
                121,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2013
             | 
            
                +0.80 / +2.58%
             |             
            
                30.60
             |           
            
                31.80
             |               
            
                30.60
             |                           
            
                31.80
             | 
            
                31.80
             |                     
            
                6.32
             |                                 
            
                23,720
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                31.30
             |           
            
                31.30
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                22,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2013
             | 
            
                -0.50 / -1.59%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                1,060
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                6.26
             |                                 
            
                13,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2013
             | 
            
                +0.70 / +2.27%
             |             
            
                31.70
             |           
            
                31.70
             |               
            
                31.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                6.26
             |                                 
            
                6,540
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                31.90
             |           
            
                31.90
             |               
            
                30.80
             |                           
            
                30.80
             | 
            
                30.80
             |                     
            
                6.12
             |                                 
            
                16,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2013
             | 
            
                -0.20 / -0.65%
             |             
            
                30.90
             |           
            
                30.90
             |               
            
                30.70
             |                           
            
                30.80
             | 
            
                30.80
             |                     
            
                6.12
             |                                 
            
                15,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2013
             | 
            
                +0.30 / +0.98%
             |             
            
                30.70
             |           
            
                32.80
             |               
            
                30.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                6.16
             |                                 
            
                47,090
             |  
            
                 
             |                                                              
             
    
         
    
    
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