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            | 
                    Closing price on 3/19/2015
                 |  |  
    
        |           
                
                    | Open | 21.00 |  
                    | High | 21.00 |  
                    | Low | 20.40 |  
                    | Volume | 155,570 |  
                    | Split-adjusted Price | 9.40 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/19/2015 | 0.00 / 0.00% | 21.00 | 21.00 | 20.40 | 20.50 | 20.56 | 9.40 | 155,570 |   |  
            | 3/18/2015 | -0.50 / -2.38% | 21.00 | 21.00 | 20.50 | 20.50 | 20.71 | 9.40 | 228,796 |   |  			
            | 3/17/2015 | -7.30 / -25.80% | 21.70 | 21.70 | 20.70 | 21.00 | 21.06 | 9.62 | 303,124 |   |  
            | 3/16/2015 | -0.10 / -0.35% | 29.00 | 29.00 | 28.20 | 28.30 | 28.36 | 9.49 | 506,440 |   |  			
            | 3/13/2015 | -0.20 / -0.70% | 28.80 | 28.80 | 28.40 | 28.40 | 28.51 | 9.52 | 329,010 |   |  
            | 3/12/2015 | 0.00 / 0.00% | 28.90 | 28.90 | 28.50 | 28.60 | 28.67 | 9.59 | 350,234 |   |  			
            | 3/11/2015 | -0.30 / -1.04% | 28.90 | 29.00 | 28.60 | 28.60 | 28.76 | 9.59 | 309,420 |   |  
            | 3/10/2015 | -0.10 / -0.34% | 29.00 | 29.10 | 28.80 | 28.90 | 28.98 | 9.69 | 244,100 |   |  			
            | 3/9/2015 | -0.20 / -0.68% | 30.00 | 30.00 | 28.90 | 29.00 | 29.16 | 9.72 | 347,500 |   |  
            | 3/6/2015 | +0.20 / +0.69% | 29.30 | 29.50 | 29.00 | 29.20 | 29.27 | 9.79 | 215,000 |   |  			
            | 3/5/2015 | +0.40 / +1.40% | 28.70 | 29.60 | 28.70 | 29.00 | 29.21 | 9.72 | 644,251 |   |  
            | 3/4/2015 | +0.70 / +2.51% | 28.40 | 28.80 | 28.30 | 28.60 | 28.52 | 9.59 | 417,644 |   |  			
            | 3/3/2015 | +0.10 / +0.36% | 27.80 | 28.20 | 27.50 | 27.90 | 27.71 | 9.35 | 153,600 |   |  
            | 3/2/2015 | -0.50 / -1.77% | 28.30 | 28.40 | 27.80 | 27.80 | 27.95 | 9.32 | 182,000 |   |  			
            | 2/27/2015 | -0.20 / -0.70% | 28.50 | 28.50 | 28.10 | 28.30 | 28.39 | 9.49 | 121,800 |   |  
            | 2/26/2015 | +1.40 / +5.17% | 27.10 | 28.50 | 27.00 | 28.50 | 27.73 | 9.55 | 472,986 |   |  			
            | 2/25/2015 | -0.10 / -0.37% | 27.00 | 27.20 | 27.00 | 27.10 | 27.17 | 9.09 | 253,900 |   |  
            | 2/24/2015 | -0.10 / -0.37% | 27.20 | 27.30 | 27.20 | 27.20 | 27.27 | 9.12 | 50,820 |   |  			
            | 2/13/2015 | +0.40 / +1.49% | 27.50 | 27.50 | 26.90 | 27.30 | 27.09 | 9.15 | 92,600 |   |  
            | 2/12/2015 | -0.10 / -0.37% | 26.80 | 27.20 | 26.80 | 26.90 | 27.03 | 9.02 | 223,700 |   |  			
            | 2/11/2015 | 0.00 / 0.00% | 27.00 | 27.30 | 27.00 | 27.00 | 27.06 | 9.05 | 74,700 |   |  
            | 2/10/2015 | -0.10 / -0.37% | 27.00 | 27.20 | 27.00 | 27.00 | 27.00 | 9.05 | 85,800 |   |  			
            | 2/9/2015 | 0.00 / 0.00% | 27.20 | 27.40 | 27.00 | 27.10 | 27.11 | 9.09 | 189,100 |   |  
            | 2/6/2015 | 0.00 / 0.00% | 27.30 | 27.30 | 27.00 | 27.10 | 27.10 | 9.09 | 50,400 |   |  			
            | 2/5/2015 | -0.10 / -0.37% | 27.20 | 27.40 | 27.10 | 27.10 | 27.27 | 9.09 | 21,310 |   |  
            | 2/4/2015 | +0.40 / +1.49% | 26.80 | 27.50 | 26.80 | 27.20 | 27.25 | 9.12 | 541,100 |   |  			
            | 2/3/2015 | -0.20 / -0.74% | 27.10 | 27.40 | 26.80 | 26.80 | 27.02 | 8.98 | 143,900 |   |  
            | 2/2/2015 | -0.10 / -0.37% | 27.50 | 27.50 | 27.00 | 27.00 | 27.15 | 9.05 | 107,000 |   |  			
            | 1/30/2015 | -0.20 / -0.73% | 27.40 | 27.40 | 26.80 | 27.10 | 27.11 | 9.09 | 278,700 |   |  
            | 1/29/2015 | 0.00 / 0.00% | 27.10 | 27.40 | 27.10 | 27.30 | 27.24 | 9.15 | 167,000 |   |  |