| 
                 
                    Closing price on 10/5/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.00 | 
                 
                
                    | High | 
                    11.10 | 
                 
                
                    | Low | 
                    11.00 | 
                     
                
                    | Volume | 
                    41,710 | 
                                 
                
                    | Split-adjusted Price | 
                    3.46 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PET Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/5/2012
             | 
            
                +0.10 / +0.92%
             |             
            
                11.00
             |           
            
                11.10
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.46
             |                                 
            
                41,710
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2012
             | 
            
                -0.30 / -2.68%
             |             
            
                11.00
             |           
            
                11.10
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                39,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2012
             | 
            
                +0.30 / +2.75%
             |             
            
                10.90
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                124,250
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2012
             | 
            
                +0.30 / +2.83%
             |             
            
                10.50
             |           
            
                11.00
             |               
            
                10.50
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                282,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2012
             | 
            
                -0.10 / -0.93%
             |             
            
                10.70
             |           
            
                10.70
             |               
            
                10.40
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                3.33
             |                                 
            
                65,520
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2012
             | 
            
                -0.10 / -0.93%
             |             
            
                10.70
             |           
            
                10.80
             |               
            
                10.70
             |                           
            
                10.70
             | 
            
                10.70
             |                     
            
                3.36
             |                                 
            
                24,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2012
             | 
            
                -0.10 / -0.92%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.40
             |                                 
            
                23,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2012
             | 
            
                +0.10 / +0.93%
             |             
            
                10.80
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                7,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.80
             |           
            
                10.90
             |               
            
                10.70
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.40
             |                                 
            
                31,420
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2012
             | 
            
                -0.20 / -1.82%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.40
             |                                 
            
                64,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2012
             | 
            
                +0.10 / +0.92%
             |             
            
                10.80
             |           
            
                11.10
             |               
            
                10.80
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.46
             |                                 
            
                86,770
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2012
             | 
            
                -0.10 / -0.91%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                62,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2012
             | 
            
                +0.10 / +0.92%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.70
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.46
             |                                 
            
                42,820
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2012
             | 
            
                -0.30 / -2.68%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                194,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2012
             | 
            
                -0.20 / -1.75%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                42,840
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2012
             | 
            
                +0.20 / +1.79%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                171,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2012
             | 
            
                +0.10 / +0.90%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                67,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                3.49
             |                                 
            
                166,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.30
             |               
            
                11.00
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                3.49
             |                                 
            
                124,870
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2012
             | 
            
                -0.30 / -2.63%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                3.49
             |                                 
            
                194,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2012
             | 
            
                +0.10 / +0.88%
             |             
            
                11.20
             |           
            
                11.40
             |               
            
                11.10
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                113,570
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                11.20
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.55
             |                                 
            
                76,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2012
             | 
            
                -0.10 / -0.88%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.10
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.55
             |                                 
            
                150,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                84,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                33,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2012
             | 
            
                -0.20 / -1.72%
             |             
            
                11.50
             |           
            
                11.60
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                61,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2012
             | 
            
                +0.40 / +3.57%
             |             
            
                11.40
             |           
            
                11.60
             |               
            
                11.20
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.65
             |                                 
            
                107,720
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2012
             | 
            
                +0.20 / +1.82%
             |             
            
                11.00
             |           
            
                11.20
             |               
            
                10.70
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                48,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2012
             | 
            
                -0.50 / -4.35%
             |             
            
                11.20
             |           
            
                11.50
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.46
             |                                 
            
                291,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2012
             | 
            
                +0.40 / +3.60%
             |             
            
                10.60
             |           
            
                11.60
             |               
            
                10.60
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                3.62
             |                                 
            
                320,940
             |  
            
                 
             |                                                              
             
    
         
    
    
 |