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                    Closing price on 12/3/2012
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        |           
                
                    | Open | 10.00 |  
                    | High | 10.70 |  
                    | Low | 10.00 |  
                    | Volume | 326,600 |  
                    | Split-adjusted Price | 2.52 |  
                
             | 
 |  PPS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/3/2012 | +0.70 / +7.00% | 10.00 | 10.70 | 10.00 | 10.70 | 10.70 | 2.52 | 326,600 |   |  
            | 11/30/2012 | +0.60 / +6.38% | 9.30 | 10.00 | 9.30 | 10.00 | 10.00 | 2.36 | 268,200 |   |  			
            | 11/29/2012 | 0.00 / 0.00% | 9.30 | 9.70 | 9.30 | 9.40 | 9.40 | 2.22 | 132,800 |   |  
            | 11/28/2012 | 0.00 / 0.00% | 9.30 | 9.40 | 9.30 | 9.40 | 9.40 | 2.22 | 55,100 |   |  			
            | 11/27/2012 | +0.10 / +1.08% | 9.20 | 9.40 | 9.10 | 9.40 | 9.40 | 2.22 | 88,500 |   |  
            | 11/26/2012 | +0.10 / +1.09% | 9.30 | 9.40 | 9.20 | 9.30 | 9.30 | 2.19 | 114,900 |   |  			
            | 11/23/2012 | -0.30 / -3.16% | 9.40 | 9.60 | 9.20 | 9.20 | 9.20 | 2.17 | 288,500 |   |  
            | 11/22/2012 | +0.30 / +3.26% | 9.10 | 9.60 | 9.10 | 9.50 | 9.50 | 2.24 | 139,800 |   |  			
            | 11/21/2012 | -0.10 / -1.08% | 9.10 | 9.40 | 9.10 | 9.20 | 9.20 | 2.17 | 214,700 |   |  
            | 11/20/2012 | +0.60 / +6.90% | 8.60 | 9.30 | 8.60 | 9.30 | 9.30 | 2.19 | 330,900 |   |  			
            | 11/19/2012 | +0.10 / +1.16% | 8.40 | 8.70 | 8.40 | 8.70 | 8.70 | 2.05 | 88,600 |   |  
            | 11/16/2012 | +0.10 / +1.18% | 8.50 | 8.60 | 8.40 | 8.60 | 8.60 | 2.03 | 110,600 |   |  			
            | 11/15/2012 | 0.00 / 0.00% | 8.50 | 8.60 | 8.40 | 8.50 | 8.50 | 2.00 | 83,000 |   |  
            | 11/14/2012 | -0.10 / -1.16% | 8.50 | 8.70 | 8.50 | 8.50 | 8.50 | 2.00 | 39,700 |   |  			
            | 11/13/2012 | -0.30 / -3.37% | 8.70 | 9.00 | 8.50 | 8.60 | 8.60 | 2.03 | 160,800 |   |  
            | 11/12/2012 | +0.50 / +5.95% | 8.30 | 8.90 | 8.30 | 8.90 | 8.90 | 2.10 | 210,800 |   |  			
            | 11/9/2012 | 0.00 / 0.00% | 8.20 | 8.50 | 8.20 | 8.40 | 8.40 | 1.98 | 102,400 |   |  
            | 11/8/2012 | -0.10 / -1.18% | 8.40 | 8.50 | 8.00 | 8.40 | 8.40 | 1.98 | 172,400 |   |  			
            | 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 |   |  |