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                    Closing price on 9/8/2011
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        |           
                
                    | Open | 9.30 |  
                    | High | 9.40 |  
                    | Low | 9.00 |  
                    | Volume | 40,100 |  
                    | Split-adjusted Price | 7.00 |  
                
             | 
 |  PIT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/8/2011 | +0.30 / +3.33% | 9.30 | 9.40 | 9.00 | 9.30 | 9.30 | 7.00 | 40,100 |   |  
            | 9/7/2011 | +0.10 / +1.12% | 8.90 | 9.30 | 8.90 | 9.00 | 9.00 | 6.78 | 4,930 |   |  			
            | 9/6/2011 | -0.10 / -1.11% | 8.80 | 9.10 | 8.80 | 8.90 | 8.90 | 6.70 | 12,540 |   |  
            | 9/5/2011 | -0.10 / -1.10% | 9.10 | 9.30 | 9.00 | 9.00 | 9.00 | 6.78 | 7,710 |   |  			
            | 9/1/2011 | +0.00 / +0.00% | 9.10 | 9.20 | 9.10 | 9.10 | 9.10 | 6.85 | 23,090 |   |  
            | 8/31/2011 | +0.00 / +0.00% | 9.00 | 9.30 | 9.00 | 9.10 | 9.10 | 6.85 | 7,380 |   |  			
            | 8/30/2011 | +0.20 / +2.25% | 9.00 | 9.30 | 9.00 | 9.10 | 9.10 | 6.85 | 12,960 |   |  
            | 8/29/2011 | +0.00 / +0.00% | 9.10 | 9.10 | 8.80 | 8.90 | 8.90 | 6.70 | 9,260 |   |  			
            | 8/26/2011 | -0.10 / -1.11% | 8.80 | 9.00 | 8.80 | 8.90 | 8.90 | 6.70 | 7,010 |   |  
            | 8/25/2011 | +0.10 / +1.12% | 8.80 | 9.20 | 8.80 | 9.00 | 9.00 | 6.78 | 4,440 |   |  			
            | 8/24/2011 | +0.00 / +0.00% | 8.90 | 9.20 | 8.70 | 8.90 | 8.90 | 6.70 | 910 |   |  
            | 8/23/2011 | +0.10 / +1.14% | 8.80 | 9.20 | 8.80 | 8.90 | 8.90 | 6.70 | 630 |   |  			
            | 8/22/2011 | -0.20 / -2.22% | 9.40 | 9.40 | 8.60 | 8.80 | 8.80 | 6.63 | 7,000 |   |  
            | 8/19/2011 | -0.30 / -3.23% | 9.20 | 9.30 | 8.90 | 9.00 | 9.00 | 6.78 | 4,680 |   |  			
            | 8/18/2011 | -0.10 / -1.06% | 9.30 | 9.60 | 9.30 | 9.30 | 9.30 | 7.00 | 7,670 |   |  
            | 8/17/2011 | +0.10 / +1.08% | 9.30 | 9.40 | 9.20 | 9.40 | 9.40 | 7.08 | 880 |   |  			
            | 8/16/2011 | +0.10 / +1.09% | 9.50 | 9.50 | 9.20 | 9.30 | 9.30 | 7.00 | 12,520 |   |  
            | 8/15/2011 | +0.30 / +3.37% | 8.70 | 9.30 | 8.70 | 9.20 | 9.20 | 6.93 | 12,630 |   |  			
            | 8/12/2011 | -0.10 / -1.11% | 8.70 | 9.20 | 8.70 | 8.90 | 8.90 | 6.70 | 10,790 |   |  
            | 8/11/2011 | -0.10 / -1.10% | 9.40 | 9.40 | 8.80 | 9.00 | 9.00 | 6.78 | 5,470 |   |  			
            | 8/10/2011 | +0.00 / +0.00% | 9.40 | 9.40 | 9.10 | 9.10 | 9.10 | 6.85 | 8,620 |   |  
            | 8/9/2011 | -0.40 / -4.21% | 9.20 | 9.20 | 9.10 | 9.10 | 9.10 | 6.85 | 13,340 |   |  			
            | 8/8/2011 | -0.50 / -5.00% | 9.50 | 9.90 | 9.50 | 9.50 | 9.50 | 7.15 | 13,710 |   |  
            | 8/5/2011 | 0.00 / 0.00% | 10.00 | 10.00 | 9.50 | 10.00 | 10.00 | 7.53 | 45,090 |   |  			
            | 8/4/2011 | +0.20 / +2.04% | 9.60 | 10.00 | 9.60 | 10.00 | 10.00 | 7.53 | 18,620 |   |  
            | 8/3/2011 | 0.00 / 0.00% | 9.60 | 9.80 | 9.40 | 9.80 | 9.80 | 7.38 | 27,000 |   |  			
            | 8/2/2011 | 0.00 / 0.00% | 9.60 | 9.80 | 9.60 | 9.80 | 9.80 | 7.38 | 9,000 |   |  
            | 8/1/2011 | +0.30 / +3.16% | 9.60 | 9.80 | 9.50 | 9.80 | 9.80 | 7.38 | 11,830 |   |  			
            | 7/29/2011 | -0.50 / -5.00% | 10.00 | 10.00 | 9.50 | 9.50 | 9.50 | 7.15 | 15,050 |   |  
            | 7/28/2011 | 0.00 / 0.00% | 9.90 | 10.00 | 9.50 | 10.00 | 10.00 | 7.53 | 17,210 |   |  |