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                    Closing price on 2/24/2020
                 |  |  
    
        |           
                
                    | Open | 65.80 |  
                    | High | 65.90 |  
                    | Low | 64.00 |  
                    | Volume | 38,850 |  
                    | Split-adjusted Price | 35.99 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/24/2020 | -1.90 / -2.88% | 65.80 | 65.90 | 64.00 | 64.00 | 64.56 | 35.99 | 38,850 |   |  
            | 2/21/2020 | -0.30 / -0.45% | 66.20 | 66.20 | 65.70 | 65.90 | 65.97 | 37.06 | 82,380 |   |  			
            | 2/20/2020 | -0.20 / -0.30% | 67.20 | 67.20 | 66.10 | 66.20 | 66.27 | 37.22 | 87,890 |   |  
            | 2/19/2020 | -0.90 / -1.34% | 67.30 | 67.30 | 66.40 | 66.40 | 66.66 | 37.34 | 64,790 |   |  			
            | 2/18/2020 | 0.00 / 0.00% | 66.80 | 67.40 | 66.80 | 67.30 | 67.01 | 37.84 | 23,220 |   |  
            | 2/17/2020 | -0.80 / -1.17% | 68.00 | 68.20 | 67.10 | 67.30 | 67.66 | 37.84 | 3,340 |   |  			
            | 2/14/2020 | -0.30 / -0.44% | 68.30 | 68.40 | 68.00 | 68.10 | 68.17 | 38.29 | 474,850 |   |  
            | 2/13/2020 | -0.20 / -0.29% | 68.00 | 68.60 | 68.00 | 68.40 | 68.28 | 38.46 | 39,690 |   |  			
            | 2/12/2020 | +0.60 / +0.88% | 67.90 | 68.80 | 67.90 | 68.60 | 68.34 | 38.57 | 26,530 |   |  
            | 2/11/2020 | +1.10 / +1.64% | 66.90 | 68.00 | 66.90 | 68.00 | 67.38 | 38.24 | 21,860 |   |  			
            | 2/10/2020 | -0.20 / -0.30% | 68.00 | 68.00 | 66.80 | 66.90 | 66.98 | 37.62 | 9,480 |   |  
            | 2/7/2020 | -0.90 / -1.32% | 68.00 | 68.10 | 67.10 | 67.10 | 67.66 | 37.73 | 18,710 |   |  			
            | 2/6/2020 | 0.00 / 0.00% | 67.00 | 68.50 | 67.00 | 68.00 | 68.02 | 38.24 | 28,550 |   |  
            | 2/5/2020 | +0.10 / +0.15% | 68.00 | 68.00 | 66.50 | 68.00 | 67.00 | 38.24 | 16,180 |   |  			
            | 2/4/2020 | -2.10 / -3.00% | 70.00 | 70.00 | 66.90 | 67.90 | 67.32 | 38.18 | 26,870 |   |  
            | 2/3/2020 | +3.90 / +5.90% | 63.00 | 70.00 | 62.80 | 70.00 | 65.32 | 39.36 | 97,420 |   |  			
            | 1/31/2020 | -0.90 / -1.34% | 66.70 | 68.30 | 66.00 | 66.10 | 66.32 | 37.17 | 43,470 |   |  
            | 1/30/2020 | -1.60 / -2.33% | 68.20 | 68.20 | 67.00 | 67.00 | 67.59 | 37.67 | 37,640 |   |  			
            | 1/22/2020 | +0.40 / +0.59% | 68.20 | 69.00 | 68.20 | 68.60 | 68.69 | 38.57 | 11,690 |   |  
            | 1/21/2020 | +0.20 / +0.29% | 68.20 | 68.20 | 67.60 | 68.20 | 67.88 | 38.35 | 65,750 |   |  			
            | 1/20/2020 | +0.70 / +1.04% | 68.50 | 68.50 | 67.00 | 68.00 | 67.46 | 38.24 | 59,620 |   |  
            | 1/17/2020 | -0.20 / -0.30% | 67.50 | 67.50 | 66.80 | 67.30 | 67.11 | 37.84 | 67,380 |   |  			
            | 1/16/2020 | -0.40 / -0.59% | 68.00 | 68.00 | 67.50 | 67.50 | 67.77 | 37.96 | 36,830 |   |  
            | 1/15/2020 | +0.40 / +0.59% | 67.50 | 67.90 | 66.50 | 67.90 | 67.10 | 38.18 | 97,680 |   |  			
            | 1/14/2020 | -0.20 / -0.30% | 67.70 | 67.70 | 66.60 | 67.50 | 67.18 | 37.96 | 46,430 |   |  
            | 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 |   |  |