| 
                 
                    Closing price on 11/25/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    25.80 | 
                 
                
                    | High | 
                    25.80 | 
                 
                
                    | Low | 
                    24.80 | 
                     
                
                    | Volume | 
                    415,940 | 
                                 
                
                    | Split-adjusted Price | 
                    5.89 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PET Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/25/2009
             | 
            
                -1.30 / -4.98%
             |             
            
                25.80
             |           
            
                25.80
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                5.89
             |                                 
            
                415,940
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2009
             | 
            
                -0.50 / -1.88%
             |             
            
                26.60
             |           
            
                27.00
             |               
            
                25.90
             |                           
            
                26.10
             | 
            
                26.10
             |                     
            
                6.20
             |                                 
            
                389,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2009
             | 
            
                -1.40 / -5.00%
             |             
            
                27.90
             |           
            
                28.00
             |               
            
                26.60
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                6.32
             |                                 
            
                419,670
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2009
             | 
            
                +0.80 / +2.94%
             |             
            
                27.20
             |           
            
                28.50
             |               
            
                27.20
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                6.65
             |                                 
            
                1,073,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2009
             | 
            
                +0.60 / +2.26%
             |             
            
                26.10
             |           
            
                27.40
             |               
            
                26.10
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                6.46
             |                                 
            
                333,180
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2009
             | 
            
                +0.10 / +0.38%
             |             
            
                26.50
             |           
            
                26.60
             |               
            
                26.00
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                6.32
             |                                 
            
                223,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2009
             | 
            
                0.00 / 0.00%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.10
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                6.30
             |                                 
            
                327,080
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2009
             | 
            
                -0.20 / -0.75%
             |             
            
                26.80
             |           
            
                27.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                6.30
             |                                 
            
                399,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2009
             | 
            
                +0.10 / +0.38%
             |             
            
                26.00
             |           
            
                26.80
             |               
            
                25.80
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                6.35
             |                                 
            
                211,030
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2009
             | 
            
                +1.00 / +3.91%
             |             
            
                26.00
             |           
            
                26.80
             |               
            
                25.70
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                6.32
             |                                 
            
                408,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2009
             | 
            
                +0.80 / +3.23%
             |             
            
                24.80
             |           
            
                25.60
             |               
            
                24.70
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                6.08
             |                                 
            
                343,730
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2009
             | 
            
                -0.70 / -2.75%
             |             
            
                26.40
             |           
            
                26.40
             |               
            
                24.30
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                5.89
             |                                 
            
                425,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2009
             | 
            
                -1.30 / -4.85%
             |             
            
                26.20
             |           
            
                26.70
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                6.06
             |                                 
            
                342,240
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2009
             | 
            
                -0.50 / -1.83%
             |             
            
                28.40
             |           
            
                28.40
             |               
            
                26.80
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                6.37
             |                                 
            
                264,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2009
             | 
            
                +1.30 / +5.00%
             |             
            
                26.20
             |           
            
                27.30
             |               
            
                26.00
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                6.49
             |                                 
            
                367,440
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2009
             | 
            
                -0.80 / -2.99%
             |             
            
                26.00
             |           
            
                27.50
             |               
            
                25.70
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                6.18
             |                                 
            
                403,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2009
             | 
            
                -1.40 / -4.96%
             |             
            
                28.20
             |           
            
                28.20
             |               
            
                26.80
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                6.37
             |                                 
            
                301,860
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2009
             | 
            
                -1.40 / -4.73%
             |             
            
                28.30
             |           
            
                28.50
             |               
            
                28.20
             |                           
            
                28.20
             | 
            
                28.20
             |                     
            
                6.70
             |                                 
            
                240,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2009
             | 
            
                +0.10 / +0.34%
             |             
            
                30.00
             |           
            
                30.50
             |               
            
                29.40
             |                           
            
                29.60
             | 
            
                29.60
             |                     
            
                7.03
             |                                 
            
                303,130
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2009
             | 
            
                -1.50 / -4.84%
             |             
            
                29.50
             |           
            
                30.00
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                7.01
             |                                 
            
                420,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2009
             | 
            
                +1.10 / +3.68%
             |             
            
                30.10
             |           
            
                31.00
             |               
            
                29.90
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                7.37
             |                                 
            
                506,080
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2009
             | 
            
                -1.50 / -4.78%
             |             
            
                30.50
             |           
            
                30.70
             |               
            
                29.90
             |                           
            
                29.90
             | 
            
                29.90
             |                     
            
                7.11
             |                                 
            
                685,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2009
             | 
            
                -0.50 / -1.57%
             |             
            
                31.80
             |           
            
                32.50
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                7.46
             |                                 
            
                938,990
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2009
             | 
            
                -0.80 / -2.45%
             |             
            
                32.90
             |           
            
                33.00
             |               
            
                31.90
             |                           
            
                31.90
             | 
            
                31.90
             |                     
            
                7.58
             |                                 
            
                1,231,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2009
             | 
            
                -0.50 / -1.51%
             |             
            
                33.30
             |           
            
                33.30
             |               
            
                32.40
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                7.77
             |                                 
            
                635,550
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2009
             | 
            
                +0.60 / +1.84%
             |             
            
                32.50
             |           
            
                33.30
             |               
            
                32.20
             |                           
            
                33.20
             | 
            
                33.20
             |                     
            
                7.89
             |                                 
            
                1,386,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2009
             | 
            
                +0.80 / +2.52%
             |             
            
                32.00
             |           
            
                32.70
             |               
            
                31.80
             |                           
            
                32.60
             | 
            
                32.60
             |                     
            
                7.75
             |                                 
            
                1,224,490
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2009
             | 
            
                -0.70 / -2.15%
             |             
            
                32.00
             |           
            
                32.60
             |               
            
                31.80
             |                           
            
                31.80
             | 
            
                31.80
             |                     
            
                7.56
             |                                 
            
                603,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2009
             | 
            
                0.00 / 0.00%
             |             
            
                32.00
             |           
            
                33.50
             |               
            
                31.80
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                7.72
             |                                 
            
                1,739,170
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2009
             | 
            
                +1.50 / +4.84%
             |             
            
                32.50
             |           
            
                32.50
             |               
            
                31.90
             |                           
            
                32.50
             | 
            
                32.50
             |                     
            
                7.72
             |                                 
            
                1,424,330
             |  
            
                 
             |                                                              
             
    
         
    
    
 |