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                    Closing price on 4/28/2011
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                    | Open | 13.30 |  
                    | High | 13.50 |  
                    | Low | 13.20 |  
                    | Volume | 1,100,940 |  
                    | Split-adjusted Price | 3.35 |  
                
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 |  PET Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/28/2011 | +0.60 / +4.65% | 13.30 | 13.50 | 13.20 | 13.50 | 13.50 | 3.35 | 1,100,940 |   |  
            | 4/27/2011 | -0.10 / -0.77% | 13.10 | 13.30 | 12.90 | 12.90 | 12.90 | 3.20 | 618,290 |   |  			
            | 4/26/2011 | -0.40 / -2.99% | 13.40 | 13.40 | 13.00 | 13.00 | 13.00 | 3.23 | 123,520 |   |  
            | 4/25/2011 | +0.60 / +4.69% | 12.80 | 13.40 | 12.80 | 13.40 | 13.40 | 3.33 | 258,850 |   |  			
            | 4/22/2011 | -0.10 / -0.78% | 12.90 | 13.00 | 12.60 | 12.80 | 12.80 | 3.18 | 274,520 |   |  
            | 4/21/2011 | -0.30 / -2.27% | 13.20 | 13.20 | 12.80 | 12.90 | 12.90 | 3.20 | 132,740 |   |  			
            | 4/20/2011 | -0.20 / -1.49% | 13.10 | 13.40 | 13.10 | 13.20 | 13.20 | 3.28 | 65,430 |   |  
            | 4/19/2011 | 0.00 / 0.00% | 13.20 | 13.50 | 13.20 | 13.40 | 13.40 | 3.33 | 40,340 |   |  			
            | 4/18/2011 | -0.20 / -1.47% | 13.50 | 13.60 | 13.40 | 13.40 | 13.40 | 3.33 | 201,740 |   |  
            | 4/15/2011 | -0.10 / -0.73% | 13.60 | 13.70 | 13.60 | 13.60 | 13.60 | 3.38 | 85,910 |   |  			
            | 4/14/2011 | -0.10 / -0.72% | 13.70 | 13.80 | 13.70 | 13.70 | 13.70 | 3.40 | 82,030 |   |  
            | 4/13/2011 | 0.00 / 0.00% | 13.70 | 13.80 | 13.70 | 13.80 | 13.80 | 3.43 | 105,760 |   |  			
            | 4/8/2011 | +0.20 / +1.47% | 13.60 | 13.90 | 13.50 | 13.80 | 13.80 | 3.43 | 129,420 |   |  
            | 4/7/2011 | -0.30 / -2.16% | 13.90 | 14.00 | 13.60 | 13.60 | 13.60 | 3.38 | 176,520 |   |  			
            | 4/6/2011 | +0.10 / +0.72% | 13.80 | 14.00 | 13.80 | 13.90 | 13.90 | 3.45 | 263,290 |   |  
            | 4/5/2011 | -0.20 / -1.43% | 13.80 | 14.00 | 13.80 | 13.80 | 13.80 | 3.43 | 106,880 |   |  			
            | 4/4/2011 | -0.10 / -0.71% | 14.10 | 14.10 | 13.90 | 14.00 | 14.00 | 3.48 | 110,710 |   |  
            | 4/1/2011 | -0.20 / -1.40% | 14.10 | 14.10 | 13.90 | 14.10 | 14.10 | 3.50 | 143,350 |   |  			
            | 3/31/2011 | -0.10 / -0.69% | 14.50 | 14.50 | 14.10 | 14.30 | 14.30 | 3.55 | 123,060 |   |  
            | 3/30/2011 | -0.10 / -0.69% | 14.10 | 14.40 | 14.10 | 14.40 | 14.40 | 3.58 | 165,060 |   |  			
            | 3/29/2011 | 0.00 / 0.00% | 14.40 | 14.50 | 14.10 | 14.50 | 14.50 | 3.60 | 139,770 |   |  
            | 3/28/2011 | 0.00 / 0.00% | 14.70 | 14.70 | 14.30 | 14.50 | 14.50 | 3.60 | 115,630 |   |  			
            | 3/25/2011 | -0.10 / -0.68% | 14.40 | 14.60 | 14.40 | 14.50 | 14.50 | 3.60 | 87,140 |   |  
            | 3/24/2011 | 0.00 / 0.00% | 14.60 | 14.60 | 14.50 | 14.60 | 14.60 | 3.63 | 82,120 |   |  			
            | 3/23/2011 | 0.00 / 0.00% | 14.60 | 14.70 | 14.40 | 14.60 | 14.60 | 3.63 | 103,360 |   |  
            | 3/22/2011 | -0.10 / -0.68% | 14.70 | 14.70 | 14.40 | 14.60 | 14.60 | 3.63 | 97,270 |   |  			
            | 3/21/2011 | 0.00 / 0.00% | 15.20 | 15.20 | 14.60 | 14.70 | 14.70 | 3.65 | 220,960 |   |  
            | 3/18/2011 | +0.20 / +1.38% | 14.60 | 14.70 | 14.40 | 14.70 | 14.70 | 3.65 | 165,820 |   |  			
            | 3/17/2011 | 0.00 / 0.00% | 14.50 | 14.90 | 14.30 | 14.50 | 14.50 | 3.60 | 161,020 |   |  
            | 3/16/2011 | +0.30 / +2.11% | 14.00 | 14.50 | 14.00 | 14.50 | 14.50 | 3.60 | 265,950 |   |  |  |  
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						| Market Update 
        
            
                Last updated at 3:10:03 PM
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