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                    Closing price on 1/19/2011
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                    | Open | 16.80 |  
                    | High | 16.90 |  
                    | Low | 16.60 |  
                    | Volume | 178,700 |  
                    | Split-adjusted Price | 4.17 |  
                
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 |  PET Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/19/2011 | +0.20 / +1.20% | 16.80 | 16.90 | 16.60 | 16.80 | 16.80 | 4.17 | 178,700 |   |  
            | 1/18/2011 | -0.10 / -0.60% | 16.60 | 16.90 | 16.50 | 16.60 | 16.60 | 4.12 | 93,060 |   |  			
            | 1/17/2011 | -0.20 / -1.18% | 16.80 | 17.30 | 16.70 | 16.70 | 16.70 | 4.15 | 256,150 |   |  
            | 1/14/2011 | +0.40 / +2.42% | 16.50 | 16.90 | 16.40 | 16.90 | 16.90 | 4.20 | 212,040 |   |  			
            | 1/13/2011 | +0.40 / +2.48% | 16.10 | 16.60 | 16.10 | 16.50 | 16.50 | 4.10 | 146,190 |   |  
            | 1/12/2011 | +0.10 / +0.63% | 16.30 | 16.30 | 16.00 | 16.10 | 16.10 | 4.00 | 72,880 |   |  			
            | 1/11/2011 | -0.60 / -3.61% | 16.50 | 16.60 | 16.00 | 16.00 | 16.00 | 3.97 | 204,260 |   |  
            | 1/10/2011 | -0.40 / -2.35% | 16.90 | 17.00 | 16.60 | 16.60 | 16.60 | 4.12 | 204,050 |   |  			
            | 1/7/2011 | 0.00 / 0.00% | 17.00 | 17.20 | 16.90 | 17.00 | 17.00 | 4.22 | 168,800 |   |  
            | 1/6/2011 | -0.10 / -0.58% | 17.00 | 17.20 | 16.90 | 17.00 | 17.00 | 4.22 | 145,680 |   |  			
            | 1/5/2011 | -0.20 / -1.16% | 17.30 | 17.30 | 17.00 | 17.10 | 17.10 | 4.25 | 198,930 |   |  
            | 1/4/2011 | +0.10 / +0.58% | 17.50 | 17.70 | 17.30 | 17.30 | 17.30 | 4.30 | 310,580 |   |  			
            | 12/31/2010 | -0.30 / -1.71% | 17.20 | 17.50 | 17.20 | 17.20 | 17.20 | 4.27 | 270,430 |   |  
            | 12/30/2010 | -0.10 / -0.57% | 17.60 | 17.70 | 17.40 | 17.50 | 17.50 | 4.35 | 168,730 |   |  			
            | 12/29/2010 | 0.00 / 0.00% | 17.80 | 17.80 | 17.40 | 17.60 | 17.60 | 4.37 | 255,150 |   |  
            | 12/28/2010 | 0.00 / 0.00% | 17.80 | 17.90 | 17.50 | 17.60 | 17.60 | 4.37 | 517,520 |   |  			
            | 12/27/2010 | -0.10 / -0.56% | 17.50 | 17.70 | 17.30 | 17.60 | 17.60 | 4.37 | 210,290 |   |  
            | 12/24/2010 | -0.10 / -0.56% | 17.50 | 17.70 | 17.30 | 17.70 | 17.70 | 4.40 | 339,320 |   |  			
            | 12/23/2010 | 0.00 / 0.00% | 17.30 | 17.80 | 17.10 | 17.80 | 17.80 | 4.42 | 618,680 |   |  
            | 12/22/2010 | -0.10 / -0.56% | 18.00 | 18.00 | 17.60 | 17.80 | 17.80 | 4.42 | 514,910 |   |  			
            | 12/21/2010 | -0.10 / -0.56% | 17.60 | 17.90 | 17.10 | 17.90 | 17.90 | 4.45 | 395,010 |   |  
            | 12/20/2010 | 0.00 / 0.00% | 18.00 | 18.20 | 17.60 | 18.00 | 18.00 | 4.47 | 334,470 |   |  			
            | 12/17/2010 | +0.50 / +2.86% | 17.40 | 18.00 | 17.20 | 18.00 | 18.00 | 4.47 | 615,420 |   |  
            | 12/16/2010 | 0.00 / 0.00% | 17.10 | 17.50 | 16.70 | 17.50 | 17.50 | 4.35 | 782,500 |   |  			
            | 12/15/2010 | -0.90 / -4.89% | 18.20 | 18.50 | 17.50 | 17.50 | 17.50 | 4.35 | 1,076,470 |   |  
            | 12/14/2010 | -0.90 / -4.66% | 18.60 | 19.20 | 18.40 | 18.40 | 18.40 | 4.57 | 768,990 |   |  			
            | 12/13/2010 | +0.80 / +4.32% | 19.40 | 19.40 | 19.10 | 19.30 | 19.30 | 4.79 | 964,970 |   |  
            | 12/10/2010 | +0.80 / +4.52% | 17.80 | 18.50 | 17.60 | 18.50 | 18.50 | 4.59 | 586,970 |   |  			
            | 12/9/2010 | +0.10 / +0.57% | 17.40 | 18.20 | 17.10 | 17.70 | 17.70 | 4.40 | 589,530 |   |  
            | 12/8/2010 | -0.60 / -3.30% | 18.00 | 18.20 | 17.30 | 17.60 | 17.60 | 4.37 | 611,870 |   |  |  |  
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						| Market Update 
        
            
                Last updated at 3:10:01 PM
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