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            | 
                    Closing price on 1/27/2016
                 |  |  
    
        |           
                
                    | Open | 80.00 |  
                    | High | 80.00 |  
                    | Low | 79.00 |  
                    | Volume | 36,310 |  
                    | Split-adjusted Price | 14.57 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/27/2016 | +0.50 / +0.63% | 80.00 | 80.00 | 79.00 | 80.00 | 79.54 | 14.57 | 36,310 |   |  
            | 1/26/2016 | 0.00 / 0.00% | 77.50 | 80.50 | 77.50 | 79.50 | 78.92 | 14.48 | 29,400 |   |  			
            | 1/25/2016 | +1.00 / +1.27% | 78.50 | 80.50 | 78.50 | 79.50 | 79.78 | 14.48 | 41,190 |   |  
            | 1/22/2016 | -1.00 / -1.26% | 80.00 | 80.00 | 77.50 | 78.50 | 78.68 | 14.30 | 54,080 |   |  			
            | 1/21/2016 | +3.50 / +4.61% | 80.00 | 80.50 | 78.00 | 79.50 | 78.91 | 14.48 | 104,360 |   |  
            | 1/20/2016 | 0.00 / 0.00% | 76.50 | 76.50 | 74.50 | 76.00 | 75.42 | 13.84 | 20,070 |   |  			
            | 1/19/2016 | +1.50 / +2.01% | 74.00 | 76.00 | 74.00 | 76.00 | 75.06 | 13.84 | 11,810 |   |  
            | 1/18/2016 | +1.50 / +2.05% | 72.50 | 78.00 | 72.00 | 74.50 | 73.73 | 13.57 | 51,140 |   |  			
            | 1/15/2016 | -1.00 / -1.35% | 74.00 | 74.00 | 73.00 | 73.00 | 73.14 | 13.30 | 17,460 |   |  
            | 1/14/2016 | -1.50 / -1.99% | 74.50 | 74.50 | 72.50 | 74.00 | 73.58 | 13.48 | 35,870 |   |  			
            | 1/13/2016 | -0.50 / -0.66% | 76.00 | 76.00 | 75.50 | 75.50 | 75.90 | 13.75 | 32,280 |   |  
            | 1/12/2016 | 0.00 / 0.00% | 76.00 | 76.00 | 75.00 | 76.00 | 75.83 | 13.84 | 19,820 |   |  			
            | 1/11/2016 | -2.00 / -2.56% | 77.50 | 78.00 | 76.00 | 76.00 | 76.97 | 13.84 | 35,350 |   |  
            | 1/8/2016 | +0.50 / +0.65% | 77.00 | 78.50 | 77.00 | 78.00 | 77.54 | 14.21 | 13,270 |   |  			
            | 1/7/2016 | -1.00 / -1.27% | 78.00 | 79.00 | 76.50 | 77.50 | 77.59 | 14.12 | 97,940 |   |  
            | 1/6/2016 | +0.50 / +0.64% | 78.00 | 78.50 | 77.00 | 78.50 | 78.01 | 14.30 | 41,970 |   |  			
            | 1/5/2016 | -0.50 / -0.64% | 77.50 | 78.50 | 77.50 | 78.00 | 78.07 | 14.21 | 42,490 |   |  
            | 1/4/2016 | 0.00 / 0.00% | 78.50 | 79.50 | 78.00 | 78.50 | 78.46 | 14.30 | 49,010 |   |  			
            | 12/31/2015 | 0.00 / 0.00% | 78.00 | 79.00 | 77.50 | 78.50 | 78.31 | 14.30 | 50,730 |   |  
            | 12/30/2015 | 0.00 / 0.00% | 77.50 | 78.50 | 77.50 | 78.50 | 77.88 | 14.30 | 19,300 |   |  			
            | 12/29/2015 | +1.50 / +1.95% | 76.00 | 81.00 | 76.00 | 78.50 | 77.29 | 14.30 | 20,920 |   |  
            | 12/28/2015 | 0.00 / 0.00% | 77.00 | 77.50 | 76.00 | 77.00 | 76.86 | 14.03 | 57,650 |   |  			
            | 12/25/2015 | 0.00 / 0.00% | 77.00 | 77.50 | 76.50 | 77.00 | 76.91 | 14.03 | 13,470 |   |  
            | 12/24/2015 | 0.00 / 0.00% | 75.50 | 77.00 | 75.50 | 77.00 | 76.62 | 14.03 | 20,870 |   |  			
            | 12/23/2015 | 0.00 / 0.00% | 76.00 | 77.00 | 74.50 | 77.00 | 75.36 | 14.03 | 85,470 |   |  
            | 12/22/2015 | 0.00 / 0.00% | 75.50 | 78.00 | 75.50 | 77.00 | 76.44 | 14.03 | 16,600 |   |  			
            | 12/21/2015 | -1.00 / -1.28% | 78.00 | 78.00 | 76.50 | 77.00 | 76.59 | 14.03 | 23,020 |   |  
            | 12/18/2015 | +3.00 / +4.00% | 75.00 | 79.50 | 74.50 | 78.00 | 77.31 | 14.21 | 88,680 |   |  			
            | 12/17/2015 | 0.00 / 0.00% | 75.00 | 75.00 | 73.50 | 75.00 | 74.46 | 13.66 | 27,600 |   |  
            | 12/16/2015 | +1.00 / +1.35% | 74.50 | 75.00 | 73.50 | 75.00 | 74.20 | 13.66 | 60,340 |   |  |