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                    Closing price on 8/30/2018
                 |  |  
    
        |           
                
                    | Open | 31.90 |  
                    | High | 31.90 |  
                    | Low | 31.70 |  
                    | Volume | 1,400 |  
                    | Split-adjusted Price | 20.96 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/30/2018 | -0.50 / -1.54% | 31.90 | 31.90 | 31.70 | 31.90 | 31.89 | 20.96 | 1,400 |   |  
            | 8/29/2018 | -0.70 / -2.11% | 31.80 | 32.40 | 31.80 | 32.40 | 31.90 | 21.29 | 600 |   |  			
            | 8/28/2018 | -0.20 / -0.60% | 34.00 | 34.00 | 33.10 | 33.10 | 33.55 | 21.75 | 200 |   |  
            | 8/27/2018 | 0.00 / 0.00% | 31.50 | 33.90 | 31.50 | 33.30 | 32.51 | 21.88 | 700 |   |  			
            | 8/24/2018 | -0.20 / -0.60% | 32.00 | 33.40 | 31.30 | 33.30 | 32.00 | 21.88 | 2,400 |   |  
            | 8/23/2018 | -0.10 / -0.30% | 33.50 | 33.50 | 33.50 | 33.50 | 33.50 | 22.01 | 400 |   |  			
            | 8/22/2018 | -0.30 / -0.88% | 33.60 | 33.60 | 33.60 | 33.60 | 33.60 | 22.08 | 200 |   |  
            | 8/21/2018 | +1.20 / +3.67% | 33.00 | 34.00 | 31.00 | 33.90 | 32.08 | 22.28 | 98,500 |   |  			
            | 8/20/2018 | -0.20 / -0.61% | 31.90 | 32.70 | 31.90 | 32.70 | 32.05 | 21.49 | 600 |   |  
            | 8/17/2018 | -0.40 / -1.20% | 33.00 | 33.00 | 31.00 | 32.90 | 31.85 | 21.62 | 2,500 |   |  			
            | 8/16/2018 | +0.90 / +2.78% | 33.30 | 33.30 | 33.30 | 33.30 | 33.30 | 21.88 | 200 |   |  
            | 8/15/2018 | -0.50 / -1.52% | 32.00 | 32.40 | 32.00 | 32.40 | 32.30 | 21.29 | 400 |   |  			
            | 8/14/2018 | 0.00 / 0.00% | 33.50 | 33.50 | 32.90 | 32.90 | 33.18 | 21.62 | 400 |   |  
            | 8/13/2018 | 0.00 / 0.00% | 32.80 | 33.00 | 32.80 | 32.90 | 32.90 | 21.62 | 400 |   |  			
            | 8/10/2018 | -0.90 / -2.66% | 31.00 | 33.00 | 31.00 | 32.90 | 31.01 | 21.62 | 32,300 |   |  
            | 8/9/2018 | -0.10 / -0.29% | 31.80 | 33.80 | 31.80 | 33.80 | 31.97 | 22.21 | 1,200 |   |  			
            | 8/8/2018 | -0.10 / -0.29% | 34.00 | 34.00 | 33.90 | 33.90 | 34.00 | 22.28 | 32,100 |   |  
            | 8/7/2018 | -0.10 / -0.29% | 34.00 | 34.00 | 34.00 | 34.00 | 34.00 | 22.34 | 200 |   |  			
            | 8/6/2018 | +0.10 / +0.29% | 34.10 | 34.10 | 34.00 | 34.10 | 34.00 | 22.41 | 53,300 |   |  
            | 8/3/2018 | 0.00 / 0.00% | 34.00 | 34.10 | 33.80 | 34.00 | 34.02 | 22.34 | 199,000 |   |  			
            | 8/2/2018 | +2.40 / +7.59% | 34.00 | 34.10 | 33.90 | 34.00 | 34.00 | 22.34 | 480,100 |   |  
            | 8/1/2018 | -1.40 / -4.24% | 33.00 | 34.50 | 31.60 | 31.60 | 34.28 | 20.76 | 306,400 |   |  			
            | 7/31/2018 | 0.00 / 0.00% | 33.00 | 33.00 | 33.00 | 33.00 | 33.00 | 21.68 | 1,000 |   |  
            | 7/30/2018 | -1.30 / -3.79% | 34.00 | 34.00 | 33.00 | 33.00 | 33.92 | 21.68 | 129,900 |   |  			
            | 7/27/2018 | -1.60 / -4.46% | 34.20 | 34.30 | 34.20 | 34.30 | 34.25 | 22.54 | 200 |   |  
            | 7/26/2018 | +0.90 / +2.57% | 34.70 | 35.90 | 31.50 | 35.90 | 34.50 | 23.59 | 400 |   |  			
            | 7/25/2018 | 0.00 / 0.00% | 35.00 | 35.00 | 35.00 | 35.00 | 35.00 | 23.00 | 0 |   |  
            | 7/24/2018 | +2.00 / +6.06% | 35.00 | 35.00 | 35.00 | 35.00 | 35.00 | 23.00 | 100 |   |  			
            | 7/23/2018 | 0.00 / 0.00% | 32.90 | 33.00 | 31.50 | 33.00 | 32.62 | 21.68 | 38,400 |   |  
            | 7/20/2018 | +0.50 / +1.54% | 33.00 | 33.00 | 33.00 | 33.00 | 33.00 | 21.68 | 200 |   |  |