| 
                 
                    Closing price on 10/31/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    21.40 | 
                 
                
                    | High | 
                    21.50 | 
                 
                
                    | Low | 
                    21.10 | 
                     
                
                    | Volume | 
                    179,360 | 
                                 
                
                    | Split-adjusted Price | 
                    7.69 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PET Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/31/2013
             | 
            
                -0.20 / -0.94%
             |             
            
                21.40
             |           
            
                21.50
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.69
             |                                 
            
                179,360
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2013
             | 
            
                -0.10 / -0.47%
             |             
            
                21.20
             |           
            
                21.50
             |               
            
                21.20
             |                           
            
                21.30
             | 
            
                21.30
             |                     
            
                7.76
             |                                 
            
                159,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2013
             | 
            
                +0.30 / +1.42%
             |             
            
                20.90
             |           
            
                21.40
             |               
            
                20.90
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                7.80
             |                                 
            
                559,130
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2013
             | 
            
                -0.60 / -2.76%
             |             
            
                21.70
             |           
            
                21.70
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.69
             |                                 
            
                878,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                21.70
             |           
            
                21.90
             |               
            
                21.50
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.91
             |                                 
            
                341,290
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2013
             | 
            
                -0.50 / -2.25%
             |             
            
                22.20
             |           
            
                22.30
             |               
            
                21.70
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.91
             |                                 
            
                885,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2013
             | 
            
                +0.40 / +1.83%
             |             
            
                21.80
             |           
            
                22.50
             |               
            
                21.80
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                8.09
             |                                 
            
                2,072,770
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2013
             | 
            
                +0.20 / +0.93%
             |             
            
                21.60
             |           
            
                22.00
             |               
            
                21.60
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                7.95
             |                                 
            
                457,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2013
             | 
            
                +0.10 / +0.47%
             |             
            
                21.60
             |           
            
                22.10
             |               
            
                21.40
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.87
             |                                 
            
                884,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2013
             | 
            
                -0.10 / -0.46%
             |             
            
                21.60
             |           
            
                21.70
             |               
            
                21.40
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                7.84
             |                                 
            
                257,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2013
             | 
            
                +0.30 / +1.41%
             |             
            
                21.40
             |           
            
                21.70
             |               
            
                21.40
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.87
             |                                 
            
                764,960
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2013
             | 
            
                +0.20 / +0.95%
             |             
            
                21.10
             |           
            
                21.40
             |               
            
                21.00
             |                           
            
                21.30
             | 
            
                21.30
             |                     
            
                7.76
             |                                 
            
                395,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2013
             | 
            
                +0.30 / +1.44%
             |             
            
                20.80
             |           
            
                21.30
             |               
            
                20.80
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                7.69
             |                                 
            
                249,110
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2013
             | 
            
                -0.20 / -0.95%
             |             
            
                21.00
             |           
            
                21.20
             |               
            
                20.80
             |                           
            
                20.80
             | 
            
                20.80
             |                     
            
                7.58
             |                                 
            
                183,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                21.20
             |           
            
                21.50
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.66
             |                                 
            
                532,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2013
             | 
            
                -0.50 / -2.33%
             |             
            
                21.40
             |           
            
                21.50
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                7.66
             |                                 
            
                580,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2013
             | 
            
                -0.20 / -0.92%
             |             
            
                21.50
             |           
            
                21.60
             |               
            
                21.40
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                7.84
             |                                 
            
                243,590
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2013
             | 
            
                -0.10 / -0.46%
             |             
            
                21.90
             |           
            
                21.90
             |               
            
                21.40
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.91
             |                                 
            
                228,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                22.00
             |           
            
                22.00
             |               
            
                21.70
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                7.95
             |                                 
            
                352,370
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2013
             | 
            
                +0.40 / +1.87%
             |             
            
                21.30
             |           
            
                21.80
             |               
            
                21.20
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                7.95
             |                                 
            
                541,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2013
             | 
            
                +0.10 / +0.47%
             |             
            
                21.40
             |           
            
                21.40
             |               
            
                21.00
             |                           
            
                21.40
             | 
            
                21.40
             |                     
            
                7.80
             |                                 
            
                479,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2013
             | 
            
                -0.30 / -1.39%
             |             
            
                21.60
             |           
            
                21.70
             |               
            
                21.30
             |                           
            
                21.30
             | 
            
                21.30
             |                     
            
                7.76
             |                                 
            
                660,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2013
             | 
            
                -0.10 / -0.46%
             |             
            
                21.70
             |           
            
                22.00
             |               
            
                21.50
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.87
             |                                 
            
                547,290
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2013
             | 
            
                +0.10 / +0.46%
             |             
            
                21.90
             |           
            
                21.90
             |               
            
                21.60
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.91
             |                                 
            
                258,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2013
             | 
            
                -0.60 / -2.70%
             |             
            
                21.80
             |           
            
                22.00
             |               
            
                21.50
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                7.87
             |                                 
            
                1,027,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2013
             | 
            
                +0.10 / +0.45%
             |             
            
                22.10
             |           
            
                22.30
             |               
            
                21.90
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                7.73
             |                                 
            
                641,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2013
             | 
            
                -0.10 / -0.45%
             |             
            
                22.20
             |           
            
                22.40
             |               
            
                22.00
             |                           
            
                22.10
             | 
            
                22.10
             |                     
            
                7.69
             |                                 
            
                582,320
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2013
             | 
            
                +0.50 / +2.30%
             |             
            
                21.60
             |           
            
                22.20
             |               
            
                21.60
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                7.73
             |                                 
            
                690,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2013
             | 
            
                +0.50 / +2.36%
             |             
            
                21.00
             |           
            
                21.70
             |               
            
                21.00
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                7.55
             |                                 
            
                447,990
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2013
             | 
            
                -0.20 / -0.93%
             |             
            
                21.50
             |           
            
                21.60
             |               
            
                21.10
             |                           
            
                21.20
             | 
            
                21.20
             |                     
            
                7.38
             |                                 
            
                326,630
             |  
            
                 
             |                                                              
             
    
         
    
    
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