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                    Closing price on 11/27/2015
                 |  |  
    
        |           
                
                    | Open | 67.00 |  
                    | High | 67.50 |  
                    | Low | 66.50 |  
                    | Volume | 16,520 |  
                    | Split-adjusted Price | 12.30 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/27/2015 | 0.00 / 0.00% | 67.00 | 67.50 | 66.50 | 67.50 | 66.89 | 12.30 | 16,520 |   |  
            | 11/26/2015 | -1.50 / -2.17% | 68.00 | 69.00 | 67.00 | 67.50 | 67.37 | 12.30 | 9,530 |   |  			
            | 11/25/2015 | +3.00 / +4.55% | 65.50 | 70.00 | 65.50 | 69.00 | 67.78 | 12.57 | 29,170 |   |  
            | 11/24/2015 | -2.00 / -2.94% | 67.50 | 67.50 | 65.50 | 66.00 | 66.30 | 12.02 | 70,960 |   |  			
            | 11/23/2015 | -1.00 / -1.45% | 68.50 | 69.00 | 68.00 | 68.00 | 68.43 | 12.39 | 45,140 |   |  
            | 11/20/2015 | -1.00 / -1.43% | 69.00 | 69.50 | 68.50 | 69.00 | 68.89 | 12.57 | 68,600 |   |  			
            | 11/19/2015 | 0.00 / 0.00% | 70.00 | 70.50 | 69.50 | 70.00 | 70.01 | 12.75 | 21,040 |   |  
            | 11/18/2015 | 0.00 / 0.00% | 69.50 | 70.50 | 69.50 | 70.00 | 69.85 | 12.75 | 67,770 |   |  			
            | 11/17/2015 | -1.50 / -2.10% | 71.50 | 71.50 | 69.50 | 70.00 | 70.53 | 12.75 | 70,590 |   |  
            | 11/16/2015 | +1.50 / +2.14% | 70.50 | 72.00 | 69.00 | 71.50 | 70.46 | 13.02 | 105,890 |   |  			
            | 11/13/2015 | +2.00 / +2.94% | 69.00 | 70.50 | 69.00 | 70.00 | 69.74 | 12.75 | 53,670 |   |  
            | 11/12/2015 | +4.00 / +6.25% | 64.00 | 68.00 | 64.00 | 68.00 | 66.42 | 12.39 | 52,560 |   |  			
            | 11/11/2015 | -0.50 / -0.78% | 64.00 | 65.00 | 64.00 | 64.00 | 64.43 | 11.66 | 8,180 |   |  
            | 11/10/2015 | -1.00 / -1.53% | 64.50 | 64.50 | 64.00 | 64.50 | 64.29 | 11.75 | 25,290 |   |  			
            | 11/9/2015 | +1.50 / +2.34% | 65.00 | 65.50 | 65.00 | 65.50 | 65.04 | 11.93 | 16,790 |   |  
            | 11/6/2015 | -2.50 / -3.76% | 66.00 | 66.00 | 63.00 | 64.00 | 64.06 | 11.66 | 51,390 |   |  			
            | 11/5/2015 | 0.00 / 0.00% | 67.00 | 67.00 | 66.00 | 66.50 | 66.15 | 12.11 | 13,000 |   |  
            | 11/4/2015 | 0.00 / 0.00% | 67.50 | 69.00 | 66.50 | 66.50 | 67.63 | 12.11 | 61,230 |   |  			
            | 11/3/2015 | +1.00 / +1.53% | 65.50 | 67.00 | 63.00 | 66.50 | 64.67 | 12.11 | 84,780 |   |  
            | 11/2/2015 | -4.50 / -6.43% | 70.50 | 71.00 | 65.50 | 65.50 | 67.06 | 11.93 | 134,130 |   |  			
            | 10/30/2015 | -2.50 / -3.45% | 72.00 | 72.00 | 70.00 | 70.00 | 70.37 | 12.75 | 93,010 |   |  
            | 10/29/2015 | +1.50 / +2.11% | 71.00 | 73.00 | 70.00 | 72.50 | 71.62 | 13.21 | 101,830 |   |  			
            | 10/28/2015 | +0.50 / +0.71% | 70.00 | 73.00 | 70.00 | 71.00 | 71.61 | 12.93 | 73,120 |   |  
            | 10/27/2015 | +4.50 / +6.82% | 65.50 | 70.50 | 65.50 | 70.50 | 67.91 | 12.84 | 96,720 |   |  			
            | 10/26/2015 | -1.00 / -1.49% | 66.50 | 66.50 | 65.50 | 66.00 | 66.11 | 12.02 | 87,510 |   |  
            | 10/23/2015 | +2.00 / +3.08% | 65.50 | 68.00 | 65.50 | 67.00 | 67.08 | 12.20 | 79,440 |   |  			
            | 10/22/2015 | +1.50 / +2.36% | 63.50 | 65.00 | 63.50 | 65.00 | 64.23 | 11.84 | 35,920 |   |  
            | 10/21/2015 | 0.00 / 0.00% | 63.50 | 65.00 | 63.50 | 63.50 | 63.97 | 11.57 | 106,670 |   |  			
            | 10/20/2015 | +2.00 / +3.25% | 62.50 | 64.00 | 62.50 | 63.50 | 63.08 | 11.57 | 104,920 |   |  
            | 10/19/2015 | +3.50 / +6.03% | 59.00 | 62.00 | 59.00 | 61.50 | 61.05 | 11.20 | 146,040 |   |  |