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                    Closing price on 2/15/2011
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        |           
                
                    | Open | 33.30 |  
                    | High | 33.90 |  
                    | Low | 32.90 |  
                    | Volume | 11,210 |  
                    | Split-adjusted Price | 6.23 |  
                
             | 
 |  PDR Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/15/2011 | +0.70 / +2.11% | 33.30 | 33.90 | 32.90 | 33.90 | 33.90 | 6.23 | 11,210 |   |  
            | 2/14/2011 | -0.80 / -2.35% | 33.90 | 34.90 | 33.20 | 33.20 | 33.20 | 6.10 | 63,790 |   |  			
            | 2/11/2011 | +0.80 / +2.41% | 34.00 | 34.00 | 33.20 | 34.00 | 34.00 | 6.24 | 9,520 |   |  
            | 2/10/2011 | -0.80 / -2.35% | 33.80 | 33.80 | 33.20 | 33.20 | 33.20 | 6.10 | 13,830 |   |  			
            | 2/9/2011 | 0.00 / 0.00% | 35.00 | 35.00 | 34.00 | 34.00 | 34.00 | 6.24 | 4,990 |   |  
            | 2/8/2011 | +1.00 / +3.03% | 34.00 | 34.00 | 32.00 | 34.00 | 34.00 | 6.24 | 54,800 |   |  			
            | 1/28/2011 | +0.50 / +1.54% | 33.00 | 33.10 | 33.00 | 33.00 | 33.00 | 6.06 | 4,510 |   |  
            | 1/27/2011 | +0.10 / +0.31% | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 5.97 | 6,000 |   |  			
            | 1/26/2011 | +0.10 / +0.31% | 32.40 | 32.50 | 32.40 | 32.40 | 32.40 | 5.95 | 2,000 |   |  
            | 1/25/2011 | -0.20 / -0.62% | 32.00 | 32.70 | 32.00 | 32.30 | 32.30 | 5.93 | 8,210 |   |  			
            | 1/24/2011 | -0.80 / -2.40% | 33.80 | 34.80 | 32.50 | 32.50 | 32.50 | 5.97 | 64,000 |   |  
            | 1/21/2011 | 0.00 / 0.00% | 33.40 | 34.00 | 33.30 | 33.30 | 33.30 | 6.12 | 9,510 |   |  			
            | 1/20/2011 | -0.10 / -0.30% | 33.40 | 33.40 | 33.00 | 33.30 | 33.30 | 6.12 | 7,400 |   |  
            | 1/19/2011 | +0.80 / +2.45% | 33.00 | 33.80 | 33.00 | 33.40 | 33.40 | 6.13 | 3,380 |   |  			
            | 1/18/2011 | -0.60 / -1.81% | 33.20 | 33.50 | 32.60 | 32.60 | 32.60 | 5.99 | 60,760 |   |  
            | 1/17/2011 | +0.20 / +0.61% | 33.00 | 33.20 | 33.00 | 33.20 | 33.20 | 6.10 | 9,900 |   |  			
            | 1/14/2011 | -0.10 / -0.30% | 33.20 | 33.20 | 33.00 | 33.00 | 33.00 | 6.06 | 13,140 |   |  
            | 1/13/2011 | +0.10 / +0.30% | 33.00 | 33.10 | 32.50 | 33.10 | 33.10 | 6.08 | 11,810 |   |  			
            | 1/12/2011 | -0.20 / -0.60% | 34.10 | 34.70 | 33.00 | 33.00 | 33.00 | 6.06 | 53,260 |   |  
            | 1/11/2011 | -0.30 / -0.90% | 33.50 | 33.50 | 33.20 | 33.20 | 33.20 | 6.10 | 13,020 |   |  			
            | 1/10/2011 | -0.50 / -1.47% | 33.50 | 33.50 | 33.50 | 33.50 | 33.50 | 6.15 | 8,000 |   |  
            | 1/7/2011 | +1.00 / +3.03% | 33.20 | 34.00 | 33.20 | 34.00 | 34.00 | 6.24 | 7,010 |   |  			
            | 1/6/2011 | -1.00 / -2.94% | 33.50 | 33.50 | 33.00 | 33.00 | 33.00 | 6.06 | 49,480 |   |  
            | 1/5/2011 | 0.00 / 0.00% | 34.00 | 34.00 | 34.00 | 34.00 | 34.00 | 6.24 | 9,500 |   |  			
            | 1/4/2011 | 0.00 / 0.00% | 34.00 | 34.00 | 34.00 | 34.00 | 34.00 | 6.24 | 5,100 |   |  
            | 12/31/2010 | 0.00 / 0.00% | 34.00 | 34.10 | 34.00 | 34.00 | 34.00 | 6.24 | 21,050 |   |  			
            | 12/30/2010 | +0.10 / +0.29% | 33.80 | 34.00 | 33.80 | 34.00 | 34.00 | 6.24 | 6,550 |   |  
            | 12/29/2010 | 0.00 / 0.00% | 33.90 | 34.00 | 33.90 | 33.90 | 33.90 | 6.23 | 9,700 |   |  			
            | 12/28/2010 | 0.00 / 0.00% | 33.90 | 34.00 | 33.90 | 33.90 | 33.90 | 6.23 | 13,520 |   |  
            | 12/27/2010 | 0.00 / 0.00% | 33.90 | 35.50 | 33.90 | 33.90 | 33.90 | 6.23 | 44,810 |   |  |