| 
                 
                    Closing price on 8/13/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    21.50 | 
                 
                
                    | High | 
                    21.50 | 
                 
                
                    | Low | 
                    21.10 | 
                     
                
                    | Volume | 
                    332,130 | 
                                 
                
                    | Split-adjusted Price | 
                    7.35 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PET Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/13/2013
             | 
            
                -0.30 / -1.40%
             |             
            
                21.50
             |           
            
                21.50
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.35
             |                                 
            
                332,130
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2013
             | 
            
                -0.20 / -0.93%
             |             
            
                21.60
             |           
            
                21.80
             |               
            
                21.30
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                7.45
             |                                 
            
                211,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                21.50
             |           
            
                21.90
             |               
            
                21.50
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.52
             |                                 
            
                322,050
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2013
             | 
            
                -0.50 / -2.26%
             |             
            
                22.30
             |           
            
                22.30
             |               
            
                21.60
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.52
             |                                 
            
                350,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2013
             | 
            
                +0.70 / +3.27%
             |             
            
                21.50
             |           
            
                22.40
             |               
            
                21.40
             |                           
            
                22.10
             | 
            
                22.10
             |                     
            
                7.69
             |                                 
            
                736,210
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2013
             | 
            
                +0.40 / +1.90%
             |             
            
                21.00
             |           
            
                21.40
             |               
            
                21.00
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                7.45
             |                                 
            
                454,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2013
             | 
            
                -0.10 / -0.47%
             |             
            
                21.00
             |           
            
                21.30
             |               
            
                20.90
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.31
             |                                 
            
                3,591,583
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2013
             | 
            
                +0.10 / +0.48%
             |             
            
                21.10
             |           
            
                21.20
             |               
            
                20.90
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.35
             |                                 
            
                285,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                20.80
             |           
            
                21.30
             |               
            
                20.70
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.31
             |                                 
            
                329,870
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2013
             | 
            
                -0.20 / -0.94%
             |             
            
                21.30
             |           
            
                21.40
             |               
            
                20.80
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.31
             |                                 
            
                270,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2013
             | 
            
                +0.90 / +4.43%
             |             
            
                20.30
             |           
            
                21.50
             |               
            
                20.30
             |                           
            
                21.20
             | 
            
                21.20
             |                     
            
                7.38
             |                                 
            
                536,210
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2013
             | 
            
                -0.70 / -3.33%
             |             
            
                21.00
             |           
            
                21.20
             |               
            
                20.20
             |                           
            
                20.30
             | 
            
                20.30
             |                     
            
                7.07
             |                                 
            
                517,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                21.00
             |           
            
                21.40
             |               
            
                20.50
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.31
             |                                 
            
                626,460
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2013
             | 
            
                -1.10 / -4.98%
             |             
            
                22.00
             |           
            
                22.10
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.31
             |                                 
            
                713,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2013
             | 
            
                -0.40 / -1.78%
             |             
            
                22.50
             |           
            
                22.50
             |               
            
                21.80
             |                           
            
                22.10
             | 
            
                22.10
             |                     
            
                7.69
             |                                 
            
                358,910
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2013
             | 
            
                +0.10 / +0.45%
             |             
            
                22.40
             |           
            
                22.70
             |               
            
                22.30
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                7.83
             |                                 
            
                271,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2013
             | 
            
                -0.40 / -1.75%
             |             
            
                23.00
             |           
            
                23.00
             |               
            
                22.30
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                7.80
             |                                 
            
                585,020
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2013
             | 
            
                +0.10 / +0.44%
             |             
            
                22.70
             |           
            
                23.00
             |               
            
                22.60
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                7.94
             |                                 
            
                525,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/18/2013
             | 
            
                -0.60 / -2.58%
             |             
            
                23.00
             |           
            
                23.40
             |               
            
                22.70
             |                           
            
                22.70
             | 
            
                22.70
             |                     
            
                7.90
             |                                 
            
                927,630
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2013
             | 
            
                -0.10 / -0.43%
             |             
            
                23.10
             |           
            
                23.50
             |               
            
                22.90
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                8.11
             |                                 
            
                839,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2013
             | 
            
                +0.50 / +2.18%
             |             
            
                23.00
             |           
            
                23.70
             |               
            
                23.00
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                8.15
             |                                 
            
                993,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2013
             | 
            
                +0.10 / +0.44%
             |             
            
                22.80
             |           
            
                23.40
             |               
            
                22.80
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                7.97
             |                                 
            
                919,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2013
             | 
            
                +1.00 / +4.59%
             |             
            
                22.10
             |           
            
                22.80
             |               
            
                22.10
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                7.94
             |                                 
            
                663,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2013
             | 
            
                +0.10 / +0.46%
             |             
            
                21.70
             |           
            
                22.00
             |               
            
                21.50
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                7.59
             |                                 
            
                350,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2013
             | 
            
                -0.30 / -1.36%
             |             
            
                22.00
             |           
            
                22.40
             |               
            
                21.70
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.55
             |                                 
            
                441,370
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                21.90
             |           
            
                22.10
             |               
            
                21.70
             |                           
            
                22.00
             | 
            
                22.00
             |                     
            
                7.66
             |                                 
            
                451,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2013
             | 
            
                -0.40 / -1.79%
             |             
            
                22.30
             |           
            
                22.40
             |               
            
                21.70
             |                           
            
                22.00
             | 
            
                22.00
             |                     
            
                7.66
             |                                 
            
                583,850
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2013
             | 
            
                +0.30 / +1.36%
             |             
            
                22.10
             |           
            
                23.10
             |               
            
                22.10
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                7.80
             |                                 
            
                1,106,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2013
             | 
            
                +1.00 / +4.74%
             |             
            
                21.20
             |           
            
                22.20
             |               
            
                21.10
             |                           
            
                22.10
             | 
            
                22.10
             |                     
            
                7.69
             |                                 
            
                934,490
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2013
             | 
            
                -0.50 / -2.31%
             |             
            
                21.50
             |           
            
                21.70
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.35
             |                                 
            
                413,040
             |  
            
                 
             |                                                              
             
    
         
    
    
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