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                    Closing price on 1/13/2020
                 |  |  
    
        |           
                
                    | Open | 67.90 |  
                    | High | 67.90 |  
                    | Low | 66.70 |  
                    | Volume | 32,130 |  
                    | Split-adjusted Price | 38.07 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/13/2020 | -0.20 / -0.29% | 67.90 | 67.90 | 66.70 | 67.70 | 67.35 | 38.07 | 32,130 |   |  
            | 1/10/2020 | -0.10 / -0.15% | 68.40 | 68.40 | 66.50 | 67.90 | 67.15 | 38.18 | 67,680 |   |  			
            | 1/9/2020 | +1.00 / +1.49% | 68.30 | 68.30 | 67.00 | 68.00 | 67.45 | 38.24 | 43,680 |   |  
            | 1/8/2020 | -2.40 / -3.46% | 68.50 | 68.60 | 67.00 | 67.00 | 67.66 | 37.67 | 120,830 |   |  			
            | 1/7/2020 | -0.50 / -0.72% | 69.90 | 69.90 | 68.50 | 69.40 | 69.10 | 39.02 | 45,440 |   |  
            | 1/6/2020 | -1.30 / -1.83% | 71.20 | 71.20 | 69.90 | 69.90 | 70.22 | 39.31 | 50,840 |   |  			
            | 1/3/2020 | +0.20 / +0.28% | 71.00 | 71.90 | 70.60 | 71.20 | 71.22 | 40.04 | 64,100 |   |  
            | 1/2/2020 | +1.00 / +1.43% | 70.00 | 71.20 | 70.00 | 71.00 | 70.72 | 39.92 | 12,670 |   |  			
            | 12/31/2019 | -0.50 / -0.71% | 70.20 | 71.50 | 70.00 | 70.00 | 70.20 | 39.36 | 62,420 |   |  
            | 12/30/2019 | -0.50 / -0.70% | 71.00 | 71.40 | 70.50 | 70.50 | 70.88 | 39.64 | 74,000 |   |  			
            | 12/27/2019 | 0.00 / 0.00% | 71.00 | 71.00 | 70.50 | 71.00 | 70.92 | 39.92 | 11,760 |   |  
            | 12/26/2019 | +0.50 / +0.71% | 70.40 | 71.20 | 69.50 | 71.00 | 70.86 | 39.92 | 14,380 |   |  			
            | 12/25/2019 | -0.30 / -0.42% | 70.00 | 71.00 | 70.00 | 70.50 | 70.66 | 39.64 | 14,590 |   |  
            | 12/24/2019 | +1.50 / +2.16% | 70.00 | 70.80 | 68.30 | 70.80 | 69.35 | 39.81 | 74,420 |   |  			
            | 12/23/2019 | -2.70 / -3.75% | 72.00 | 72.20 | 69.30 | 69.30 | 70.35 | 38.97 | 97,410 |   |  
            | 12/20/2019 | 0.00 / 0.00% | 71.00 | 72.00 | 71.00 | 72.00 | 71.51 | 40.49 | 13,550 |   |  			
            | 12/19/2019 | +1.10 / +1.55% | 70.90 | 72.10 | 70.10 | 72.00 | 71.03 | 40.49 | 34,030 |   |  
            | 12/18/2019 | -0.10 / -0.14% | 71.00 | 71.40 | 70.10 | 70.90 | 70.74 | 39.87 | 96,370 |   |  			
            | 12/17/2019 | -1.50 / -2.07% | 71.50 | 72.70 | 71.00 | 71.00 | 71.69 | 39.92 | 66,400 |   |  
            | 12/16/2019 | -0.20 / -0.28% | 72.60 | 72.80 | 72.40 | 72.50 | 72.53 | 40.77 | 21,990 |   |  			
            | 12/13/2019 | -0.20 / -0.27% | 72.80 | 73.00 | 72.60 | 72.70 | 72.74 | 40.88 | 37,860 |   |  
            | 12/12/2019 | -0.10 / -0.14% | 73.00 | 73.00 | 72.80 | 72.90 | 72.97 | 40.99 | 29,630 |   |  			
            | 12/11/2019 | 0.00 / 0.00% | 73.20 | 73.20 | 72.80 | 73.00 | 73.05 | 41.05 | 4,750 |   |  
            | 12/10/2019 | -0.10 / -0.14% | 73.10 | 74.00 | 72.80 | 73.00 | 73.02 | 41.05 | 19,160 |   |  			
            | 12/9/2019 | +0.30 / +0.41% | 73.00 | 73.30 | 72.50 | 73.10 | 72.89 | 41.10 | 43,970 |   |  
            | 12/6/2019 | -0.10 / -0.14% | 72.60 | 73.20 | 72.60 | 72.80 | 72.87 | 40.94 | 44,120 |   |  			
            | 12/5/2019 | -0.70 / -0.95% | 73.90 | 73.90 | 72.90 | 72.90 | 73.52 | 40.99 | 68,970 |   |  
            | 12/4/2019 | +0.80 / +1.10% | 73.00 | 73.60 | 72.70 | 73.60 | 72.89 | 41.39 | 10,180 |   |  			
            | 12/3/2019 | -0.60 / -0.82% | 73.40 | 74.00 | 72.50 | 72.80 | 73.40 | 40.94 | 76,270 |   |  
            | 12/2/2019 | -0.10 / -0.14% | 74.50 | 74.50 | 73.20 | 73.40 | 73.51 | 41.27 | 67,300 |   |  |