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            | 
                    Closing price on 7/19/2016
                 |  |  
    
        |           
                
                    | Open | 130.00 |  
                    | High | 134.00 |  
                    | Low | 127.00 |  
                    | Volume | 101,550 |  
                    | Split-adjusted Price | 28.40 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/19/2016 | +3.00 / +2.31% | 130.00 | 134.00 | 127.00 | 133.00 | 129.99 | 28.40 | 101,550 |   |  
            | 7/18/2016 | 0.00 / 0.00% | 127.00 | 130.00 | 127.00 | 130.00 | 128.35 | 27.76 | 45,430 |   |  			
            | 7/15/2016 | -5.00 / -3.70% | 134.00 | 135.00 | 128.00 | 130.00 | 130.08 | 27.76 | 112,800 |   |  
            | 7/14/2016 | -2.00 / -1.46% | 137.00 | 137.00 | 135.00 | 135.00 | 135.95 | 28.82 | 64,920 |   |  			
            | 7/13/2016 | 0.00 / 0.00% | 139.00 | 139.00 | 137.00 | 137.00 | 137.44 | 29.25 | 30,420 |   |  
            | 7/12/2016 | 0.00 / 0.00% | 137.00 | 139.00 | 136.00 | 137.00 | 136.89 | 29.25 | 57,230 |   |  			
            | 7/11/2016 | -1.00 / -0.72% | 138.00 | 140.00 | 134.00 | 137.00 | 137.36 | 29.25 | 96,550 |   |  
            | 7/8/2016 | -2.00 / -1.43% | 140.00 | 141.00 | 138.00 | 138.00 | 139.68 | 29.46 | 41,460 |   |  			
            | 7/7/2016 | +2.00 / +1.45% | 138.00 | 141.00 | 137.00 | 140.00 | 140.12 | 29.89 | 37,740 |   |  
            | 7/6/2016 | +2.00 / +1.47% | 135.00 | 139.00 | 134.00 | 138.00 | 137.06 | 29.46 | 54,690 |   |  			
            | 7/5/2016 | 0.00 / 0.00% | 141.00 | 141.00 | 136.00 | 136.00 | 137.35 | 29.04 | 42,410 |   |  
            | 7/4/2016 | +4.00 / +3.03% | 132.00 | 136.00 | 132.00 | 136.00 | 134.58 | 29.04 | 79,190 |   |  			
            | 7/1/2016 | +1.00 / +0.76% | 130.00 | 132.00 | 130.00 | 132.00 | 131.32 | 28.18 | 79,170 |   |  
            | 6/30/2016 | +1.00 / +0.77% | 130.00 | 133.00 | 130.00 | 131.00 | 130.93 | 27.97 | 90,970 |   |  			
            | 6/29/2016 | +3.00 / +2.36% | 127.00 | 130.00 | 127.00 | 130.00 | 128.80 | 27.76 | 241,360 |   |  
            | 6/28/2016 | -2.00 / -1.55% | 129.00 | 129.00 | 126.00 | 127.00 | 127.48 | 27.12 | 40,470 |   |  			
            | 6/27/2016 | +3.00 / +2.38% | 126.00 | 130.00 | 123.00 | 129.00 | 127.13 | 27.54 | 64,830 |   |  
            | 6/24/2016 | -3.00 / -2.33% | 128.00 | 130.00 | 120.00 | 126.00 | 124.57 | 26.90 | 217,940 |   |  			
            | 6/23/2016 | -1.00 / -0.77% | 131.00 | 131.00 | 129.00 | 129.00 | 129.49 | 27.54 | 29,370 |   |  
            | 6/22/2016 | +3.00 / +2.36% | 129.00 | 131.00 | 129.00 | 130.00 | 129.95 | 27.76 | 56,590 |   |  			
            | 6/21/2016 | -3.00 / -2.31% | 129.00 | 133.00 | 121.00 | 127.00 | 126.97 | 27.12 | 114,660 |   |  
            | 6/20/2016 | +6.00 / +4.84% | 125.00 | 131.00 | 125.00 | 130.00 | 129.06 | 27.76 | 87,220 |   |  			
            | 6/17/2016 | -1.00 / -0.80% | 125.00 | 125.00 | 122.00 | 124.00 | 123.53 | 26.47 | 26,520 |   |  
            | 6/16/2016 | +7.00 / +5.93% | 118.00 | 126.00 | 118.00 | 125.00 | 123.17 | 26.69 | 204,310 |   |  			
            | 6/15/2016 | -2.00 / -1.67% | 120.00 | 121.00 | 117.00 | 118.00 | 118.34 | 25.19 | 87,250 |   |  
            | 6/14/2016 | +5.00 / +4.35% | 115.00 | 120.00 | 114.00 | 120.00 | 116.70 | 25.62 | 96,500 |   |  			
            | 6/13/2016 | -2.00 / -1.71% | 117.00 | 118.00 | 115.00 | 115.00 | 115.98 | 24.55 | 68,140 |   |  
            | 6/10/2016 | -2.00 / -1.68% | 119.00 | 119.00 | 117.00 | 117.00 | 117.85 | 24.98 | 12,720 |   |  			
            | 6/9/2016 | +2.00 / +1.71% | 117.00 | 119.00 | 116.00 | 119.00 | 117.53 | 25.41 | 15,120 |   |  
            | 6/8/2016 | +1.00 / +0.86% | 116.00 | 118.00 | 116.00 | 117.00 | 116.37 | 24.98 | 15,330 |   |  |