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            | 
                    Closing price on 1/22/2015
                 |  |  
    
        |           
                
                    | Open | 28.20 |  
                    | High | 28.20 |  
                    | Low | 27.80 |  
                    | Volume | 144,300 |  
                    | Split-adjusted Price | 9.32 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/22/2015 | 0.00 / 0.00% | 28.20 | 28.20 | 27.80 | 27.80 | 28.01 | 9.32 | 144,300 |   |  
            | 1/21/2015 | -0.60 / -2.11% | 28.00 | 28.50 | 27.70 | 27.80 | 28.06 | 9.32 | 237,510 |   |  			
            | 1/20/2015 | -0.50 / -1.73% | 28.90 | 28.90 | 28.00 | 28.40 | 28.45 | 9.52 | 237,900 |   |  
            | 1/19/2015 | -0.10 / -0.34% | 29.60 | 29.80 | 28.50 | 28.90 | 29.12 | 9.69 | 214,100 |   |  			
            | 1/16/2015 | 0.00 / 0.00% | 28.80 | 29.70 | 28.30 | 29.00 | 29.21 | 9.72 | 249,710 |   |  
            | 1/15/2015 | +1.30 / +4.69% | 25.00 | 29.30 | 25.00 | 29.00 | 28.70 | 9.72 | 451,110 |   |  			
            | 1/14/2015 | -0.20 / -0.72% | 27.70 | 28.00 | 27.40 | 27.70 | 27.78 | 9.29 | 216,800 |   |  
            | 1/13/2015 | +0.10 / +0.36% | 27.70 | 28.20 | 27.40 | 27.90 | 27.93 | 9.35 | 278,900 |   |  			
            | 1/12/2015 | +0.20 / +0.72% | 27.60 | 28.30 | 27.60 | 27.80 | 28.01 | 9.32 | 381,530 |   |  
            | 1/9/2015 | +1.00 / +3.76% | 26.70 | 28.00 | 26.70 | 27.60 | 27.36 | 9.25 | 437,300 |   |  			
            | 1/8/2015 | 0.00 / 0.00% | 26.60 | 27.20 | 26.60 | 26.60 | 26.88 | 8.92 | 192,500 |   |  
            | 1/7/2015 | +0.40 / +1.53% | 25.80 | 27.30 | 25.70 | 26.60 | 26.39 | 8.92 | 412,210 |   |  			
            | 1/6/2015 | -0.30 / -1.13% | 26.00 | 26.30 | 25.60 | 26.20 | 26.05 | 8.78 | 256,010 |   |  
            | 1/5/2015 | -0.40 / -1.49% | 27.00 | 27.10 | 26.30 | 26.50 | 26.78 | 8.88 | 140,880 |   |  			
            | 12/31/2014 | +0.70 / +2.67% | 26.20 | 27.10 | 26.10 | 26.90 | 26.59 | 9.02 | 270,600 |   |  
            | 12/30/2014 | 0.00 / 0.00% | 25.80 | 26.40 | 25.50 | 26.20 | 26.06 | 8.78 | 308,110 |   |  			
            | 12/29/2014 | -1.00 / -3.68% | 27.00 | 27.40 | 26.20 | 26.20 | 26.75 | 8.78 | 97,950 |   |  
            | 12/26/2014 | -0.20 / -0.73% | 27.70 | 27.80 | 27.00 | 27.20 | 27.28 | 9.12 | 145,600 |   |  			
            | 12/25/2014 | -0.60 / -2.14% | 27.50 | 27.90 | 27.30 | 27.40 | 27.54 | 9.19 | 92,600 |   |  
            | 12/24/2014 | +0.10 / +0.36% | 28.00 | 28.10 | 27.90 | 28.00 | 27.99 | 9.39 | 78,350 |   |  			
            | 12/23/2014 | -0.60 / -2.11% | 29.70 | 29.70 | 27.80 | 27.90 | 28.28 | 9.35 | 305,080 |   |  
            | 12/22/2014 | +1.00 / +3.64% | 30.20 | 30.20 | 27.70 | 28.50 | 28.46 | 9.55 | 308,010 |   |  			
            | 12/19/2014 | -0.20 / -0.72% | 27.50 | 28.70 | 27.10 | 27.50 | 27.63 | 9.22 | 205,160 |   |  
            | 12/18/2014 | +2.00 / +7.78% | 23.20 | 28.20 | 23.20 | 27.70 | 26.99 | 9.29 | 631,670 |   |  			
            | 12/17/2014 | -1.70 / -6.20% | 27.40 | 28.00 | 24.70 | 25.70 | 26.54 | 8.62 | 826,720 |   |  
            | 12/16/2014 | -2.10 / -7.12% | 29.50 | 29.50 | 26.70 | 27.40 | 27.96 | 9.19 | 563,540 |   |  			
            | 12/15/2014 | -0.20 / -0.67% | 29.70 | 30.00 | 29.50 | 29.50 | 29.71 | 9.89 | 162,100 |   |  
            | 12/12/2014 | +0.20 / +0.68% | 30.10 | 30.10 | 29.00 | 29.70 | 29.69 | 9.96 | 303,160 |   |  			
            | 12/11/2014 | -1.90 / -6.05% | 30.60 | 31.00 | 29.50 | 29.50 | 30.47 | 9.89 | 272,330 |   |  
            | 12/10/2014 | +0.80 / +2.61% | 30.60 | 31.40 | 29.00 | 31.40 | 30.46 | 10.53 | 485,436 |   |  |