| 
                 
                    Closing price on 11/13/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.90 | 
                 
                
                    | High | 
                    11.00 | 
                 
                
                    | Low | 
                    10.80 | 
                     
                
                    | Volume | 
                    40,770 | 
                                 
                
                    | Split-adjusted Price | 
                    3.40 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PET Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/13/2012
             | 
            
                -0.20 / -1.82%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.40
             |                                 
            
                40,770
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2012
             | 
            
                +0.10 / +0.92%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.80
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                3.46
             |                                 
            
                119,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2012
             | 
            
                +0.10 / +0.93%
             |             
            
                10.80
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                78,520
             |            
            
                 
             |                                       
         
    
        
            | 
                11/8/2012
             | 
            
                -0.10 / -0.92%
             |             
            
                10.80
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                3.40
             |                                 
            
                97,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/7/2012
             | 
            
                +0.30 / +2.83%
             |             
            
                10.60
             |           
            
                11.00
             |               
            
                10.60
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                96,740
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2012
             | 
            
                -0.10 / -0.93%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.50
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                3.33
             |                                 
            
                76,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2012
             | 
            
                +0.10 / +0.94%
             |             
            
                10.60
             |           
            
                10.70
             |               
            
                10.50
             |                           
            
                10.70
             | 
            
                10.70
             |                     
            
                3.36
             |                                 
            
                34,590
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2012
             | 
            
                -0.30 / -2.75%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.50
             |                           
            
                10.60
             | 
            
                10.60
             |                     
            
                3.33
             |                                 
            
                150,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/1/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.10
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                89,010
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                74,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2012
             | 
            
                -0.30 / -2.68%
             |             
            
                10.90
             |           
            
                11.00
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                10.90
             |                     
            
                3.43
             |                                 
            
                54,150
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.10
             |           
            
                11.20
             |               
            
                11.00
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                32,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.00
             |           
            
                11.20
             |               
            
                11.00
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                40,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                7,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2012
             | 
            
                -0.20 / -1.75%
             |             
            
                11.20
             |           
            
                11.40
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                38,870
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2012
             | 
            
                +0.10 / +0.88%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                69,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2012
             | 
            
                +0.10 / +0.89%
             |             
            
                11.10
             |           
            
                11.30
             |               
            
                11.10
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.55
             |                                 
            
                164,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2012
             | 
            
                -0.20 / -1.75%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                3.52
             |                                 
            
                89,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2012
             | 
            
                -0.10 / -0.87%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.20
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                89,520
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.30
             |           
            
                11.50
             |               
            
                11.30
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                3.62
             |                                 
            
                60,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2012
             | 
            
                +0.20 / +1.77%
             |             
            
                11.20
             |           
            
                11.50
             |               
            
                11.20
             |                           
            
                11.50
             | 
            
                11.50
             |                     
            
                3.62
             |                                 
            
                74,450
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2012
             | 
            
                -0.30 / -2.59%
             |             
            
                11.60
             |           
            
                11.60
             |               
            
                11.20
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                3.55
             |                                 
            
                36,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.80
             |           
            
                11.80
             |               
            
                11.50
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.65
             |                                 
            
                20,160
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.70
             |           
            
                11.90
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.65
             |                                 
            
                121,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2012
             | 
            
                +0.20 / +1.75%
             |             
            
                11.30
             |           
            
                11.70
             |               
            
                11.30
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                3.65
             |                                 
            
                350,250
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2012
             | 
            
                0.00 / 0.00%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.20
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                46,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2012
             | 
            
                +0.40 / +3.64%
             |             
            
                11.10
             |           
            
                11.40
             |               
            
                11.10
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                3.58
             |                                 
            
                230,180
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |