| 
                 
                    Closing price on 2/12/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    59.00 | 
                 
                
                    | High | 
                    59.00 | 
                 
                
                    | Low | 
                    59.00 | 
                     
                
                    | Volume | 
                    5,050 | 
                                 
                
                    | Split-adjusted Price | 
                    18.35 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/12/2018
             | 
            
                -0.90 / -1.50%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                18.35
             |                                 
            
                5,050
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2018
             | 
            
                +0.90 / +1.53%
             |             
            
                59.00
             |           
            
                59.90
             |               
            
                59.00
             |                           
            
                59.90
             | 
            
                59.26
             |                     
            
                18.63
             |                                 
            
                810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2018
             | 
            
                +3.00 / +5.36%
             |             
            
                59.90
             |           
            
                59.90
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.45
             |                     
            
                18.35
             |                                 
            
                300,280
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                54.00
             |                           
            
                56.00
             | 
            
                55.83
             |                     
            
                17.41
             |                                 
            
                2,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2018
             | 
            
                -4.00 / -6.67%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.00
             |                           
            
                56.00
             | 
            
                56.13
             |                     
            
                17.41
             |                                 
            
                5,220
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2018
             | 
            
                +1.00 / +1.69%
             |             
            
                58.20
             |           
            
                60.00
             |               
            
                58.00
             |                           
            
                60.00
             | 
            
                58.30
             |                     
            
                18.66
             |                                 
            
                2,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2018
             | 
            
                -1.00 / -1.67%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                60.00
             |                     
            
                18.35
             |                                 
            
                950
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2018
             | 
            
                +1.00 / +1.69%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                59.00
             |                           
            
                60.00
             | 
            
                59.50
             |                     
            
                18.66
             |                                 
            
                110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2018
             | 
            
                -1.00 / -1.67%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                58.50
             |                           
            
                59.00
             | 
            
                58.68
             |                     
            
                18.35
             |                                 
            
                1,210
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                18.66
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2018
             | 
            
                0.00 / 0.00%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.47
             |                     
            
                18.66
             |                                 
            
                860
             |            
            
                 
             |                                       
         
    
        
            | 
                1/26/2018
             | 
            
                +1.10 / +1.87%
             |             
            
                59.90
             |           
            
                60.00
             |               
            
                58.50
             |                           
            
                60.00
             | 
            
                59.96
             |                     
            
                18.66
             |                                 
            
                5,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2018
             | 
            
                +0.60 / +1.03%
             |             
            
                58.30
             |           
            
                58.90
             |               
            
                58.30
             |                           
            
                58.90
             | 
            
                58.39
             |                     
            
                18.31
             |                                 
            
                1,490
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                58.30
             |           
            
                58.30
             |               
            
                58.30
             |                           
            
                58.30
             | 
            
                58.30
             |                     
            
                18.13
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2018
             | 
            
                +0.30 / +0.52%
             |             
            
                58.00
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.30
             | 
            
                58.82
             |                     
            
                18.13
             |                                 
            
                4,420
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2018
             | 
            
                -1.00 / -1.69%
             |             
            
                58.50
             |           
            
                60.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.06
             |                     
            
                18.03
             |                                 
            
                1,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.00
             |                     
            
                18.35
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2018
             | 
            
                -1.00 / -1.67%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                58.20
             |                           
            
                59.00
             | 
            
                58.90
             |                     
            
                18.35
             |                                 
            
                1,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                59.00
             |                           
            
                60.00
             | 
            
                59.50
             |                     
            
                18.66
             |                                 
            
                340
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2018
             | 
            
                0.00 / 0.00%
             |             
            
                58.30
             |           
            
                60.00
             |               
            
                58.30
             |                           
            
                60.00
             | 
            
                58.82
             |                     
            
                18.66
             |                                 
            
                1,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                18.66
             |                                 
            
                60
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2018
             | 
            
                +1.40 / +2.39%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                58.80
             |                           
            
                60.00
             | 
            
                59.29
             |                     
            
                18.66
             |                                 
            
                5,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                58.60
             |           
            
                59.00
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.94
             |                     
            
                18.22
             |                                 
            
                2,630
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                58.60
             |           
            
                58.60
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.60
             |                     
            
                18.22
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2018
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.50
             |               
            
                58.60
             |                           
            
                58.60
             | 
            
                58.91
             |                     
            
                18.22
             |                                 
            
                2,020
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2018
             | 
            
                +0.10 / +0.17%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                58.50
             |                           
            
                58.60
             | 
            
                58.94
             |                     
            
                18.22
             |                                 
            
                3,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                59.70
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.67
             |                     
            
                18.19
             |                                 
            
                2,710
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2018
             | 
            
                -1.50 / -2.50%
             |             
            
                60.00
             |           
            
                63.00
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                62.07
             |                     
            
                18.19
             |                                 
            
                580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2017
             | 
            
                +1.50 / +2.56%
             |             
            
                62.50
             |           
            
                62.50
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                61.25
             |                     
            
                18.66
             |                                 
            
                30
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2017
             | 
            
                -2.00 / -3.31%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                58.50
             |                           
            
                58.50
             | 
            
                58.57
             |                     
            
                18.19
             |                                 
            
                5,190
             |  
            
                 
             |                                                              
             
    
         
    
    
 |