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                    Closing price on 1/4/2012
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        |           
                
                    | Open | 10.30 |  
                    | High | 11.00 |  
                    | Low | 10.00 |  
                    | Volume | 573,400 |  
                    | Split-adjusted Price | 5.71 |  
                
             | 
 |  PVE Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/4/2012 | +0.60 / +5.83% | 10.30 | 11.00 | 10.00 | 10.90 | 10.90 | 5.71 | 573,400 |   |  
            | 1/3/2012 | +0.60 / +6.19% | 10.30 | 10.30 | 10.10 | 10.30 | 10.30 | 5.39 | 57,700 |   |  			
            | 12/30/2011 | +0.50 / +5.43% | 9.60 | 9.70 | 9.50 | 9.70 | 9.70 | 5.08 | 98,400 |   |  
            | 12/29/2011 | +0.50 / +5.75% | 8.70 | 9.20 | 8.70 | 9.20 | 9.20 | 4.82 | 218,300 |   |  			
            | 12/28/2011 | +0.40 / +4.82% | 7.70 | 8.70 | 7.70 | 8.70 | 8.70 | 4.56 | 67,500 |   |  
            | 12/27/2011 | -0.20 / -2.35% | 8.20 | 8.50 | 8.00 | 8.30 | 8.30 | 4.35 | 98,200 |   |  			
            | 12/26/2011 | -0.50 / -5.56% | 8.60 | 8.80 | 8.50 | 8.50 | 8.50 | 4.45 | 192,100 |   |  
            | 12/23/2011 | -0.20 / -2.17% | 9.20 | 9.20 | 9.00 | 9.00 | 9.00 | 4.71 | 66,700 |   |  			
            | 12/22/2011 | 0.00 / 0.00% | 9.30 | 9.50 | 9.10 | 9.20 | 9.20 | 4.82 | 135,100 |   |  
            | 12/21/2011 | 0.00 / 0.00% | 8.80 | 9.50 | 8.70 | 9.20 | 9.20 | 4.82 | 51,000 |   |  			
            | 12/20/2011 | -0.30 / -3.16% | 9.30 | 9.40 | 9.20 | 9.20 | 9.20 | 4.82 | 50,800 |   |  
            | 12/19/2011 | -0.40 / -4.04% | 9.80 | 10.00 | 9.40 | 9.50 | 9.50 | 4.97 | 22,900 |   |  			
            | 12/16/2011 | +0.60 / +6.45% | 9.50 | 9.90 | 9.50 | 9.90 | 9.90 | 5.18 | 114,400 |   |  
            | 12/15/2011 | -0.50 / -5.10% | 9.60 | 9.60 | 9.20 | 9.30 | 9.30 | 4.87 | 93,700 |   |  			
            | 12/14/2011 | -0.10 / -1.01% | 9.90 | 9.90 | 9.70 | 9.80 | 9.80 | 5.13 | 141,500 |   |  
            | 12/13/2011 | -0.10 / -1.00% | 10.10 | 10.10 | 9.80 | 9.90 | 9.90 | 5.18 | 71,300 |   |  			
            | 12/12/2011 | -0.20 / -1.96% | 10.20 | 10.40 | 10.00 | 10.00 | 10.00 | 5.24 | 129,900 |   |  
            | 12/9/2011 | -0.40 / -3.77% | 10.40 | 10.50 | 10.20 | 10.20 | 10.20 | 5.34 | 96,600 |   |  			
            | 12/8/2011 | 0.00 / 0.00% | 10.70 | 10.80 | 10.40 | 10.60 | 10.60 | 5.55 | 55,600 |   |  
            | 12/7/2011 | 0.00 / 0.00% | 10.80 | 10.90 | 10.60 | 10.60 | 10.60 | 5.55 | 69,100 |   |  			
            | 12/6/2011 | -0.60 / -5.36% | 11.30 | 11.30 | 10.60 | 10.60 | 10.60 | 5.55 | 33,900 |   |  
            | 12/5/2011 | +0.70 / +6.67% | 10.80 | 11.20 | 9.80 | 11.20 | 11.20 | 5.86 | 236,200 |   |  			
            | 12/2/2011 | +0.10 / +0.96% | 10.40 | 10.50 | 10.40 | 10.50 | 10.50 | 5.50 | 44,200 |   |  
            | 12/1/2011 | +0.20 / +1.96% | 10.50 | 10.50 | 10.30 | 10.40 | 10.40 | 5.45 | 18,900 |   |  			
            | 11/30/2011 | -0.20 / -1.92% | 10.20 | 10.30 | 10.20 | 10.20 | 10.20 | 5.34 | 43,200 |   |  
            | 11/29/2011 | -0.20 / -1.89% | 10.80 | 10.80 | 10.40 | 10.40 | 10.40 | 5.45 | 61,700 |   |  			
            | 11/28/2011 | +0.30 / +2.91% | 10.50 | 10.80 | 10.50 | 10.60 | 10.60 | 5.55 | 64,600 |   |  
            | 11/25/2011 | +0.10 / +0.98% | 10.10 | 10.30 | 10.10 | 10.30 | 10.30 | 5.39 | 72,000 |   |  			
            | 11/24/2011 | -0.30 / -2.86% | 10.40 | 10.40 | 10.20 | 10.20 | 10.20 | 5.34 | 96,700 |   |  
            | 11/23/2011 | +0.10 / +0.96% | 10.90 | 10.90 | 10.30 | 10.50 | 10.50 | 5.50 | 69,700 |   |  |