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                    Closing price on 9/28/2012
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        |           
                
                    | Open | 7.00 |  
                    | High | 7.10 |  
                    | Low | 7.00 |  
                    | Volume | 35,100 |  
                    | Split-adjusted Price | 1.65 |  
                
             | 
 |  PPS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 9/26/2012 | 0.00 / 0.00% | 7.00 | 7.20 | 7.00 | 7.20 | 7.20 | 1.70 | 9,200 |   |  
            | 9/25/2012 | +0.20 / +2.86% | 7.10 | 7.20 | 7.10 | 7.20 | 7.20 | 1.70 | 44,100 |   |  			
            | 9/24/2012 | -0.20 / -2.78% | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 1.65 | 35,000 |   |  
            | 9/21/2012 | +0.20 / +2.86% | 6.90 | 7.20 | 6.90 | 7.20 | 7.20 | 1.70 | 33,200 |   |  			
            | 9/20/2012 | 0.00 / 0.00% | 6.90 | 7.00 | 6.80 | 7.00 | 7.00 | 1.65 | 30,000 |   |  
            | 9/19/2012 | +0.20 / +2.94% | 6.70 | 7.00 | 6.70 | 7.00 | 7.00 | 1.65 | 21,300 |   |  			
            | 9/18/2012 | -0.30 / -4.23% | 6.90 | 7.10 | 6.80 | 6.80 | 6.80 | 1.60 | 61,100 |   |  
            | 9/17/2012 | -0.30 / -4.05% | 7.20 | 7.30 | 7.10 | 7.10 | 7.10 | 1.67 | 21,600 |   |  			
            | 9/14/2012 | +0.20 / +2.78% | 7.00 | 7.40 | 7.00 | 7.40 | 7.40 | 1.74 | 20,500 |   |  
            | 9/13/2012 | +0.20 / +2.86% | 6.80 | 7.20 | 6.80 | 7.20 | 7.20 | 1.70 | 35,000 |   |  			
            | 9/12/2012 | 0.00 / 0.00% | 6.80 | 7.20 | 6.80 | 7.00 | 7.00 | 1.65 | 42,800 |   |  
            | 9/11/2012 | 0.00 / 0.00% | 6.90 | 7.00 | 6.90 | 7.00 | 7.00 | 1.65 | 13,200 |   |  			
            | 9/10/2012 | -0.40 / -5.41% | 7.20 | 7.20 | 6.90 | 7.00 | 7.00 | 1.65 | 82,900 |   |  
            | 9/7/2012 | -0.10 / -1.33% | 7.30 | 7.40 | 7.30 | 7.40 | 7.40 | 1.74 | 35,500 |   |  			
            | 9/6/2012 | 0.00 / 0.00% | 7.30 | 7.50 | 7.30 | 7.50 | 7.50 | 1.77 | 31,700 |   |  
            | 9/5/2012 | -0.20 / -2.60% | 7.70 | 7.70 | 7.40 | 7.50 | 7.50 | 1.77 | 40,600 |   |  			
            | 9/4/2012 | +0.20 / +2.67% | 7.50 | 7.70 | 7.50 | 7.70 | 7.70 | 1.82 | 28,500 |   |  
            | 8/31/2012 | 0.00 / 0.00% | 7.20 | 7.50 | 7.20 | 7.50 | 7.50 | 1.77 | 12,000 |   |  			
            | 8/30/2012 | -0.20 / -2.60% | 7.60 | 7.60 | 7.20 | 7.50 | 7.50 | 1.77 | 67,400 |   |  
            | 8/29/2012 | +0.40 / +5.48% | 7.30 | 7.80 | 7.30 | 7.70 | 7.70 | 1.82 | 18,300 |   |  			
            | 8/28/2012 | +0.30 / +4.29% | 6.80 | 7.30 | 6.80 | 7.30 | 7.30 | 1.72 | 7,400 |   |  
            | 8/27/2012 | -0.50 / -6.67% | 7.50 | 7.50 | 7.00 | 7.00 | 7.00 | 1.65 | 87,400 |   |  			
            | 8/24/2012 | 0.00 / 0.00% | 7.10 | 7.90 | 7.00 | 7.50 | 7.50 | 1.77 | 139,500 |   |  
            | 8/23/2012 | -0.50 / -6.25% | 7.60 | 7.70 | 7.50 | 7.50 | 7.50 | 1.77 | 157,200 |   |  			
            | 8/22/2012 | -0.50 / -5.88% | 8.00 | 8.50 | 8.00 | 8.00 | 8.00 | 1.89 | 85,600 |   |  
            | 8/21/2012 | -0.60 / -6.59% | 8.90 | 8.90 | 8.50 | 8.50 | 8.50 | 2.00 | 102,100 |   |  			
            | 8/20/2012 | +0.10 / +1.11% | 9.00 | 9.20 | 9.00 | 9.10 | 9.10 | 2.15 | 54,800 |   |  
            | 8/17/2012 | 0.00 / 0.00% | 9.00 | 9.10 | 9.00 | 9.00 | 9.00 | 2.12 | 41,500 |   |  |