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                    Closing price on 4/28/2016
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                    | Open | 37.70 |  
                    | High | 37.70 |  
                    | Low | 36.50 |  
                    | Volume | 28,230 |  
                    | Split-adjusted Price | 10.80 |  
                
             | 
 |  OPC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/28/2016 | 0.00 / 0.00% | 37.70 | 37.70 | 36.50 | 36.50 | 37.10 | 10.80 | 28,230 |   |  
            | 4/27/2016 | +0.50 / +1.39% | 36.50 | 38.00 | 36.50 | 36.50 | 36.88 | 10.80 | 630 |   |  			
            | 4/26/2016 | +1.00 / +2.86% | 35.00 | 36.70 | 35.00 | 36.00 | 36.07 | 10.65 | 1,220 |   |  
            | 4/25/2016 | -1.30 / -3.58% | 36.00 | 36.00 | 35.00 | 35.00 | 35.43 | 10.36 | 1,750 |   |  			
            | 4/22/2016 | 0.00 / 0.00% | 36.30 | 36.30 | 36.30 | 36.30 | 36.30 | 10.74 | 2,100 |   |  
            | 4/21/2016 | -0.20 / -0.55% | 36.30 | 36.30 | 36.30 | 36.30 | 36.30 | 10.74 | 500 |   |  			
            | 4/20/2016 | -0.30 / -0.82% | 36.50 | 36.50 | 36.50 | 36.50 | 36.50 | 10.80 | 0 |   |  
            | 4/19/2016 | 0.00 / 0.00% | 36.50 | 36.80 | 36.50 | 36.80 | 36.50 | 10.89 | 8,850 |   |  			
            | 4/15/2016 | -0.10 / -0.27% | 37.00 | 37.30 | 36.80 | 36.80 | 36.95 | 10.89 | 8,850 |   |  
            | 4/14/2016 | +0.40 / +1.10% | 36.80 | 36.90 | 36.80 | 36.90 | 36.90 | 10.92 | 10,000 |   |  			
            | 4/13/2016 | +0.50 / +1.39% | 36.90 | 36.90 | 36.00 | 36.50 | 36.57 | 10.80 | 2,160 |   |  
            | 4/12/2016 | -0.50 / -1.37% | 36.00 | 36.00 | 36.00 | 36.00 | 36.00 | 10.65 | 210 |   |  			
            | 4/11/2016 | -0.20 / -0.54% | 37.40 | 37.40 | 36.50 | 36.50 | 36.67 | 10.80 | 1,200 |   |  
            | 4/8/2016 | -0.30 / -0.81% | 36.90 | 36.90 | 36.70 | 36.70 | 36.82 | 10.86 | 2,200 |   |  			
            | 4/7/2016 | +0.80 / +2.21% | 37.00 | 37.00 | 36.90 | 37.00 | 36.98 | 10.95 | 3,280 |   |  
            | 4/6/2016 | +0.20 / +0.56% | 36.00 | 36.20 | 36.00 | 36.20 | 36.10 | 10.71 | 2,040 |   |  			
            | 4/5/2016 | 0.00 / 0.00% | 36.00 | 36.00 | 36.00 | 36.00 | 36.00 | 10.65 | 100 |   |  
            | 4/4/2016 | 0.00 / 0.00% | 35.60 | 36.00 | 35.60 | 36.00 | 35.97 | 10.65 | 2,530 |   |  			
            | 4/1/2016 | -0.80 / -2.17% | 36.70 | 36.70 | 36.00 | 36.00 | 36.07 | 10.65 | 3,410 |   |  
            | 3/31/2016 | 0.00 / 0.00% | 36.80 | 36.80 | 36.80 | 36.80 | 36.80 | 10.89 | 0 |   |  			
            | 3/30/2016 | 0.00 / 0.00% | 36.80 | 36.80 | 36.80 | 36.80 | 36.80 | 10.89 | 0 |   |  
            | 3/29/2016 | 0.00 / 0.00% | 36.80 | 36.80 | 36.80 | 36.80 | 36.80 | 10.89 | 0 |   |  			
            | 3/28/2016 | +0.60 / +1.66% | 36.80 | 36.80 | 36.80 | 36.80 | 36.80 | 10.89 | 10 |   |  
            | 3/25/2016 | -0.60 / -1.63% | 36.50 | 36.90 | 36.20 | 36.20 | 36.38 | 10.71 | 8,000 |   |  			
            | 3/24/2016 | -0.10 / -0.27% | 36.80 | 36.80 | 36.80 | 36.80 | 36.80 | 10.89 | 100 |   |  
            | 3/23/2016 | +1.90 / +5.43% | 36.20 | 36.90 | 36.20 | 36.90 | 36.65 | 10.92 | 5,320 |   |  			
            | 3/22/2016 | -1.00 / -2.78% | 35.00 | 35.00 | 35.00 | 35.00 | 35.00 | 10.36 | 51,000 |   |  
            | 3/21/2016 | 0.00 / 0.00% | 35.60 | 36.00 | 35.60 | 36.00 | 35.87 | 10.65 | 3,290 |   |  			
            | 3/18/2016 | +0.20 / +0.56% | 36.00 | 36.00 | 36.00 | 36.00 | 36.00 | 10.65 | 1,000 |   |  
            | 3/17/2016 | +1.80 / +5.29% | 34.10 | 35.80 | 34.10 | 35.80 | 35.69 | 10.59 | 13,310 |   |  |