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                    Closing price on 12/19/2012
                 |  |  
    
        |           
                
                    | Open | 11.60 |  
                    | High | 12.00 |  
                    | Low | 11.50 |  
                    | Volume | 355,700 |  
                    | Split-adjusted Price | 2.73 |  
                
             | 
 |  PPS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 12/19/2012 | -0.10 / -0.85% | 11.60 | 12.00 | 11.50 | 11.60 | 11.60 | 2.73 | 355,700 |   |  
            | 12/18/2012 | -0.10 / -0.85% | 11.70 | 11.90 | 11.50 | 11.70 | 11.70 | 2.76 | 275,200 |   |  			
            | 12/17/2012 | +0.20 / +1.72% | 11.70 | 11.90 | 11.60 | 11.80 | 11.80 | 2.78 | 185,400 |   |  
            | 12/14/2012 | -0.10 / -0.85% | 11.50 | 12.20 | 11.50 | 11.60 | 11.60 | 2.73 | 293,300 |   |  			
            | 12/13/2012 | -0.40 / -3.31% | 11.90 | 12.20 | 11.50 | 11.70 | 11.70 | 2.76 | 254,100 |   |  
            | 12/12/2012 | +0.50 / +4.31% | 11.40 | 12.20 | 11.20 | 12.10 | 12.10 | 2.85 | 337,400 |   |  			
            | 12/11/2012 | -0.40 / -3.33% | 12.00 | 12.10 | 11.40 | 11.60 | 11.60 | 2.73 | 337,300 |   |  
            | 12/10/2012 | +0.40 / +3.45% | 11.40 | 12.10 | 11.40 | 12.00 | 12.00 | 2.83 | 350,200 |   |  			
            | 12/7/2012 | +0.10 / +0.87% | 11.40 | 12.00 | 11.40 | 11.60 | 11.60 | 2.73 | 350,300 |   |  
            | 12/6/2012 | +0.70 / +6.48% | 10.80 | 11.50 | 10.60 | 11.50 | 11.50 | 2.71 | 456,400 |   |  			
            | 12/5/2012 | -0.20 / -1.82% | 11.00 | 11.20 | 10.80 | 10.80 | 10.80 | 2.55 | 203,800 |   |  
            | 12/4/2012 | +0.30 / +2.80% | 10.60 | 11.40 | 10.60 | 11.00 | 11.00 | 2.59 | 366,000 |   |  			
            | 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 |   |  |