| 
                 
                    Closing price on 12/21/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    35.00 | 
                 
                
                    | High | 
                    35.50 | 
                 
                
                    | Low | 
                    35.00 | 
                     
                
                    | Volume | 
                    3,500 | 
                                 
                
                    | Split-adjusted Price | 
                    10.06 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/21/2015
             | 
            
                +0.50 / +1.45%
             |             
            
                35.00
             |           
            
                35.50
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.14
             |                     
            
                10.06
             |                                 
            
                3,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2015
             | 
            
                -0.50 / -1.43%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                34.97
             |                     
            
                9.92
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2015
             | 
            
                -0.30 / -0.85%
             |             
            
                33.50
             |           
            
                35.00
             |               
            
                33.50
             |                           
            
                35.00
             | 
            
                34.74
             |                     
            
                10.06
             |                                 
            
                2,130
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2015
             | 
            
                +0.80 / +2.32%
             |             
            
                35.00
             |           
            
                35.30
             |               
            
                35.00
             |                           
            
                35.30
             | 
            
                35.03
             |                     
            
                10.15
             |                                 
            
                11,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2015
             | 
            
                -0.90 / -2.54%
             |             
            
                35.40
             |           
            
                35.40
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                35.13
             |                     
            
                9.92
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2015
             | 
            
                +1.60 / +4.73%
             |             
            
                33.80
             |           
            
                35.50
             |               
            
                33.80
             |                           
            
                35.40
             | 
            
                35.30
             |                     
            
                10.18
             |                                 
            
                13,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/11/2015
             | 
            
                -1.20 / -3.43%
             |             
            
                33.80
             |           
            
                33.80
             |               
            
                33.80
             |                           
            
                33.80
             | 
            
                33.80
             |                     
            
                9.72
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2015
             | 
            
                -0.20 / -0.57%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.00
             |                     
            
                10.06
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2015
             | 
            
                +0.20 / +0.57%
             |             
            
                35.00
             |           
            
                35.20
             |               
            
                35.00
             |                           
            
                35.20
             | 
            
                35.00
             |                     
            
                10.12
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2015
             | 
            
                0.00 / 0.00%
             |             
            
                35.20
             |           
            
                35.20
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.11
             |                     
            
                10.06
             |                                 
            
                940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2015
             | 
            
                0.00 / 0.00%
             |             
            
                35.00
             |           
            
                35.40
             |               
            
                33.50
             |                           
            
                35.00
             | 
            
                34.29
             |                     
            
                10.06
             |                                 
            
                5,570
             |            
            
                 
             |                                       
         
    
        
            | 
                12/4/2015
             | 
            
                0.00 / 0.00%
             |             
            
                35.00
             |           
            
                35.20
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.08
             |                     
            
                10.06
             |                                 
            
                14,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/3/2015
             | 
            
                +1.40 / +4.17%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                34.50
             |                           
            
                35.00
             | 
            
                34.88
             |                     
            
                10.06
             |                                 
            
                1,050
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2015
             | 
            
                +0.10 / +0.30%
             |             
            
                35.00
             |           
            
                35.20
             |               
            
                33.60
             |                           
            
                33.60
             | 
            
                35.18
             |                     
            
                9.66
             |                                 
            
                20,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2015
             | 
            
                -1.50 / -4.29%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                33.00
             |                           
            
                33.50
             | 
            
                33.38
             |                     
            
                9.63
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2015
             | 
            
                -0.50 / -1.41%
             |             
            
                33.30
             |           
            
                35.00
             |               
            
                33.20
             |                           
            
                35.00
             | 
            
                33.33
             |                     
            
                10.06
             |                                 
            
                1,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2015
             | 
            
                +0.60 / +1.72%
             |             
            
                34.00
             |           
            
                35.50
             |               
            
                34.00
             |                           
            
                35.50
             | 
            
                35.31
             |                     
            
                10.21
             |                                 
            
                79,250
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.90
             |           
            
                35.00
             |               
            
                34.00
             |                           
            
                34.90
             | 
            
                34.39
             |                     
            
                10.04
             |                                 
            
                7,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2015
             | 
            
                +0.10 / +0.29%
             |             
            
                32.60
             |           
            
                34.90
             |               
            
                32.60
             |                           
            
                34.90
             | 
            
                33.75
             |                     
            
                10.04
             |                                 
            
                220
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2015
             | 
            
                -0.10 / -0.29%
             |             
            
                34.00
             |           
            
                34.80
             |               
            
                33.50
             |                           
            
                34.80
             | 
            
                33.91
             |                     
            
                10.01
             |                                 
            
                2,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2015
             | 
            
                -0.60 / -1.69%
             |             
            
                35.50
             |           
            
                35.50
             |               
            
                33.10
             |                           
            
                34.90
             | 
            
                35.17
             |                     
            
                10.04
             |                                 
            
                1,450
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2015
             | 
            
                +2.00 / +5.97%
             |             
            
                33.90
             |           
            
                35.50
             |               
            
                33.00
             |                           
            
                35.50
             | 
            
                34.01
             |                     
            
                10.21
             |                                 
            
                56,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2015
             | 
            
                -0.50 / -1.47%
             |             
            
                34.00
             |           
            
                34.00
             |               
            
                33.50
             |                           
            
                33.50
             | 
            
                33.88
             |                     
            
                9.63
             |                                 
            
                4,280
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2015
             | 
            
                +0.10 / +0.29%
             |             
            
                31.80
             |           
            
                34.00
             |               
            
                31.80
             |                           
            
                34.00
             | 
            
                32.38
             |                     
            
                9.78
             |                                 
            
                1,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2015
             | 
            
                -0.20 / -0.59%
             |             
            
                34.90
             |           
            
                34.90
             |               
            
                33.00
             |                           
            
                33.90
             | 
            
                33.65
             |                     
            
                9.75
             |                                 
            
                1,040
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2015
             | 
            
                +1.10 / +3.33%
             |             
            
                33.00
             |           
            
                34.10
             |               
            
                33.00
             |                           
            
                34.10
             | 
            
                33.73
             |                     
            
                9.81
             |                                 
            
                10,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2015
             | 
            
                +2.00 / +6.45%
             |             
            
                31.20
             |           
            
                33.10
             |               
            
                31.00
             |                           
            
                33.00
             | 
            
                32.39
             |                     
            
                9.49
             |                                 
            
                1,261,625
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2015
             | 
            
                +1.00 / +3.33%
             |             
            
                30.00
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                31.00
             | 
            
                30.74
             |                     
            
                8.91
             |                                 
            
                2,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2015
             | 
            
                0.00 / 0.00%
             |             
            
                30.10
             |           
            
                30.10
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.05
             |                     
            
                8.63
             |                                 
            
                1,010
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2015
             | 
            
                -0.30 / -0.99%
             |             
            
                30.30
             |           
            
                30.30
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.15
             |                     
            
                8.63
             |                                 
            
                1,020
             |  
            
                 
             |                                                              
             
    
         
    
    
 |