| 
                 
                    Closing price on 4/21/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    36.30 | 
                 
                
                    | High | 
                    36.30 | 
                 
                
                    | Low | 
                    36.30 | 
                     
                
                    | Volume | 
                    500 | 
                                 
                
                    | Split-adjusted Price | 
                    10.74 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2016
             | 
            
                -1.60 / -4.49%
             |             
            
                34.50
             |           
            
                34.50
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.25
             |                     
            
                10.06
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2016
             | 
            
                0.00 / 0.00%
             |             
            
                35.60
             |           
            
                35.60
             |               
            
                35.60
             |                           
            
                35.60
             | 
            
                35.60
             |                     
            
                10.53
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2016
             | 
            
                0.00 / 0.00%
             |             
            
                35.50
             |           
            
                36.50
             |               
            
                35.50
             |                           
            
                35.60
             | 
            
                35.88
             |                     
            
                10.53
             |                                 
            
                1,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2016
             | 
            
                -0.70 / -1.93%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                35.50
             |                           
            
                35.60
             | 
            
                35.78
             |                     
            
                10.53
             |                                 
            
                130
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2016
             | 
            
                +0.80 / +2.25%
             |             
            
                36.50
             |           
            
                36.50
             |               
            
                36.30
             |                           
            
                36.30
             | 
            
                36.49
             |                     
            
                10.74
             |                                 
            
                220
             |  
            
                 
             |                                                              
             
    
         
    
    
 |