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                    Closing price on 11/7/2012
                 |  |  
    
        |           
                
                    | Open | 8.20 |  
                    | High | 8.70 |  
                    | Low | 8.10 |  
                    | Volume | 146,700 |  
                    | Split-adjusted Price | 2.00 |  
                
             | 
 |  PPS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/7/2012 | +0.20 / +2.41% | 8.20 | 8.70 | 8.10 | 8.50 | 8.50 | 2.00 | 146,700 |   |  
            | 11/6/2012 | +0.30 / +3.75% | 7.90 | 8.30 | 7.90 | 8.30 | 8.30 | 1.96 | 113,400 |   |  			
            | 11/5/2012 | 0.00 / 0.00% | 7.80 | 8.40 | 7.80 | 8.00 | 8.00 | 1.89 | 106,300 |   |  
            | 11/2/2012 | -0.60 / -6.98% | 8.40 | 8.50 | 8.00 | 8.00 | 8.00 | 1.89 | 215,600 |   |  			
            | 11/1/2012 | +0.30 / +3.61% | 8.10 | 8.70 | 8.10 | 8.60 | 8.60 | 2.03 | 194,500 |   |  
            | 10/31/2012 | -0.20 / -2.35% | 8.40 | 8.40 | 8.00 | 8.30 | 8.30 | 1.96 | 88,100 |   |  			
            | 10/30/2012 | +0.30 / +3.66% | 8.30 | 8.50 | 8.20 | 8.50 | 8.50 | 2.00 | 98,100 |   |  
            | 10/29/2012 | -0.40 / -4.65% | 8.50 | 8.70 | 8.20 | 8.20 | 8.20 | 1.93 | 210,000 |   |  			
            | 10/26/2012 | -0.10 / -1.15% | 8.50 | 8.80 | 8.50 | 8.60 | 8.60 | 2.03 | 181,200 |   |  
            | 10/25/2012 | -0.50 / -5.43% | 9.10 | 9.30 | 8.60 | 8.70 | 8.70 | 2.05 | 411,300 |   |  			
            | 10/24/2012 | -0.40 / -4.17% | 9.30 | 9.50 | 9.10 | 9.20 | 9.20 | 2.17 | 117,100 |   |  
            | 10/23/2012 | +0.30 / +3.23% | 9.10 | 9.60 | 9.10 | 9.60 | 9.60 | 2.26 | 256,100 |   |  			
            | 10/22/2012 | -0.10 / -1.06% | 9.30 | 9.40 | 9.00 | 9.30 | 9.30 | 2.19 | 172,100 |   |  
            | 10/19/2012 | -0.30 / -3.09% | 9.50 | 9.90 | 9.10 | 9.40 | 9.40 | 2.22 | 309,000 |   |  			
            | 10/18/2012 | +0.50 / +5.43% | 9.00 | 9.70 | 8.90 | 9.70 | 9.70 | 2.29 | 269,300 |   |  
            | 10/17/2012 | +0.60 / +6.98% | 9.20 | 9.20 | 8.60 | 9.20 | 9.20 | 2.17 | 339,500 |   |  			
            | 10/16/2012 | +0.50 / +6.17% | 7.90 | 8.60 | 7.90 | 8.60 | 8.60 | 2.03 | 166,800 |   |  
            | 10/15/2012 | -0.70 / -7.95% | 8.40 | 8.70 | 8.10 | 8.10 | 8.10 | 1.91 | 178,200 |   |  			
            | 10/12/2012 | -0.10 / -1.12% | 9.00 | 9.30 | 8.60 | 8.80 | 8.80 | 2.07 | 196,900 |   |  
            | 10/11/2012 | +0.50 / +5.95% | 8.90 | 8.90 | 8.60 | 8.90 | 8.90 | 2.10 | 177,100 |   |  			
            | 10/10/2012 | +0.50 / +6.33% | 7.90 | 8.40 | 7.90 | 8.40 | 8.40 | 1.98 | 166,000 |   |  
            | 10/9/2012 | +0.50 / +6.76% | 7.40 | 7.90 | 7.30 | 7.90 | 7.90 | 1.86 | 186,000 |   |  			
            | 10/8/2012 | +0.30 / +4.23% | 7.10 | 7.40 | 7.10 | 7.40 | 7.40 | 1.74 | 62,500 |   |  
            | 10/5/2012 | +0.10 / +1.43% | 7.10 | 7.20 | 7.00 | 7.10 | 7.10 | 1.67 | 25,750 |   |  			
            | 10/4/2012 | -0.10 / -1.41% | 7.10 | 7.10 | 7.00 | 7.00 | 7.00 | 1.65 | 61,200 |   |  
            | 10/3/2012 | 0.00 / 0.00% | 7.20 | 7.20 | 7.10 | 7.10 | 7.10 | 1.67 | 35,200 |   |  			
            | 10/2/2012 | +0.10 / +1.43% | 7.00 | 7.10 | 7.00 | 7.10 | 7.10 | 1.67 | 27,000 |   |  
            | 10/1/2012 | 0.00 / 0.00% | 7.00 | 7.00 | 6.80 | 7.00 | 7.00 | 1.65 | 34,500 |   |  			
            | 9/28/2012 | -0.10 / -1.41% | 7.00 | 7.10 | 7.00 | 7.00 | 7.00 | 1.65 | 35,100 |   |  
            | 9/27/2012 | -0.10 / -1.39% | 7.00 | 7.10 | 7.00 | 7.10 | 7.10 | 1.67 | 8,700 |   |  |