| 
    
        
            | 
                    Closing price on 1/11/2013
                 |  |  
    
        |           
                
                    | Open | 13.40 |  
                    | High | 13.40 |  
                    | Low | 13.10 |  
                    | Volume | 337,600 |  
                    | Split-adjusted Price | 4.15 |  
                
             | 
 |  PET Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/11/2013 | -0.10 / -0.75% | 13.40 | 13.40 | 13.10 | 13.20 | 13.20 | 4.15 | 337,600 |   |  
            | 1/10/2013 | +0.20 / +1.53% | 13.10 | 13.30 | 13.00 | 13.30 | 13.30 | 4.18 | 291,540 |   |  			
            | 1/9/2013 | 0.00 / 0.00% | 13.20 | 13.70 | 13.00 | 13.10 | 13.10 | 4.12 | 875,570 |   |  
            | 1/8/2013 | +0.10 / +0.77% | 12.90 | 13.10 | 12.90 | 13.10 | 13.10 | 4.12 | 669,480 |   |  			
            | 1/7/2013 | +0.10 / +0.78% | 13.00 | 13.10 | 12.90 | 13.00 | 13.00 | 4.09 | 1,071,050 |   |  
            | 1/4/2013 | +0.10 / +0.78% | 12.70 | 13.00 | 12.70 | 12.90 | 12.90 | 4.06 | 386,770 |   |  			
            | 1/3/2013 | -0.20 / -1.54% | 12.90 | 12.90 | 12.70 | 12.80 | 12.80 | 4.02 | 250,300 |   |  
            | 1/2/2013 | +0.50 / +4.00% | 12.50 | 13.00 | 12.50 | 13.00 | 13.00 | 4.09 | 457,400 |   |  			
            | 12/28/2012 | 0.00 / 0.00% | 12.60 | 12.60 | 12.50 | 12.50 | 12.50 | 3.93 | 158,030 |   |  
            | 12/27/2012 | -0.10 / -0.79% | 12.60 | 12.70 | 12.50 | 12.50 | 12.50 | 3.93 | 466,480 |   |  			
            | 12/26/2012 | +0.20 / +1.61% | 12.30 | 12.60 | 12.30 | 12.60 | 12.60 | 3.96 | 102,480 |   |  
            | 12/25/2012 | -0.20 / -1.59% | 12.70 | 12.70 | 12.40 | 12.40 | 12.40 | 3.90 | 249,350 |   |  			
            | 12/24/2012 | 0.00 / 0.00% | 12.40 | 12.70 | 12.40 | 12.60 | 12.60 | 3.96 | 161,880 |   |  
            | 12/21/2012 | -0.10 / -0.79% | 12.70 | 12.70 | 12.40 | 12.60 | 12.60 | 3.96 | 189,320 |   |  			
            | 12/20/2012 | 0.00 / 0.00% | 12.70 | 12.80 | 12.60 | 12.70 | 12.70 | 3.99 | 129,710 |   |  
            | 12/19/2012 | 0.00 / 0.00% | 12.60 | 12.80 | 12.60 | 12.70 | 12.70 | 3.99 | 501,140 |   |  			
            | 12/18/2012 | -0.10 / -0.78% | 12.80 | 12.80 | 12.60 | 12.70 | 12.70 | 3.99 | 133,100 |   |  
            | 12/17/2012 | +0.10 / +0.79% | 12.60 | 12.80 | 12.60 | 12.80 | 12.80 | 4.02 | 430,190 |   |  			
            | 12/14/2012 | -0.10 / -0.78% | 12.80 | 12.90 | 12.70 | 12.70 | 12.70 | 3.99 | 474,490 |   |  
            | 12/13/2012 | +0.30 / +2.40% | 12.60 | 12.90 | 12.50 | 12.80 | 12.80 | 4.02 | 820,980 |   |  			
            | 12/12/2012 | +0.30 / +2.46% | 12.30 | 12.60 | 12.30 | 12.50 | 12.50 | 3.93 | 545,530 |   |  
            | 12/11/2012 | +0.30 / +2.52% | 11.90 | 12.30 | 11.80 | 12.20 | 12.20 | 3.84 | 450,330 |   |  			
            | 12/10/2012 | +0.30 / +2.59% | 11.50 | 11.90 | 11.50 | 11.90 | 11.90 | 3.74 | 189,990 |   |  
            | 12/7/2012 | 0.00 / 0.00% | 11.40 | 11.70 | 11.40 | 11.60 | 11.60 | 3.65 | 61,290 |   |  			
            | 12/6/2012 | 0.00 / 0.00% | 11.60 | 11.70 | 11.50 | 11.60 | 11.60 | 3.65 | 55,690 |   |  
            | 12/5/2012 | 0.00 / 0.00% | 11.70 | 11.90 | 11.60 | 11.60 | 11.60 | 3.65 | 180,120 |   |  			
            | 12/4/2012 | +0.10 / +0.87% | 11.50 | 11.60 | 11.50 | 11.60 | 11.60 | 3.65 | 22,830 |   |  
            | 12/3/2012 | 0.00 / 0.00% | 11.50 | 11.50 | 11.40 | 11.50 | 11.50 | 3.62 | 28,050 |   |  			
            | 11/30/2012 | +0.10 / +0.88% | 11.40 | 11.50 | 11.40 | 11.50 | 11.50 | 3.62 | 165,960 |   |  
            | 11/29/2012 | 0.00 / 0.00% | 11.50 | 11.50 | 11.40 | 11.40 | 11.40 | 3.58 | 76,930 |   |  |