| 
                 
                    Closing price on 11/27/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    34.00 | 
                 
                
                    | High | 
                    35.50 | 
                 
                
                    | Low | 
                    34.00 | 
                     
                
                    | Volume | 
                    79,250 | 
                                 
                
                    | Split-adjusted Price | 
                    10.21 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2015
             | 
            
                +0.50 / +1.68%
             |             
            
                30.00
             |           
            
                30.40
             |               
            
                30.00
             |                           
            
                30.30
             | 
            
                30.22
             |                     
            
                8.71
             |                                 
            
                5,460
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2015
             | 
            
                +0.30 / +1.02%
             |             
            
                29.50
             |           
            
                30.00
             |               
            
                29.50
             |                           
            
                29.80
             | 
            
                29.73
             |                     
            
                8.57
             |                                 
            
                3,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2015
             | 
            
                +0.40 / +1.37%
             |             
            
                29.40
             |           
            
                29.50
             |               
            
                29.40
             |                           
            
                29.50
             | 
            
                29.45
             |                     
            
                8.48
             |                                 
            
                350
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2015
             | 
            
                +0.10 / +0.34%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                29.10
             |                           
            
                29.10
             | 
            
                29.15
             |                     
            
                8.37
             |                                 
            
                8,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2015
             | 
            
                -0.40 / -1.36%
             |             
            
                28.90
             |           
            
                29.00
             |               
            
                28.80
             |                           
            
                29.00
             | 
            
                28.87
             |                     
            
                8.34
             |                                 
            
                13,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2015
             | 
            
                +0.60 / +2.08%
             |             
            
                28.80
             |           
            
                29.40
             |               
            
                28.20
             |                           
            
                29.40
             | 
            
                28.63
             |                     
            
                8.45
             |                                 
            
                7,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2015
             | 
            
                0.00 / 0.00%
             |             
            
                28.60
             |           
            
                28.80
             |               
            
                28.60
             |                           
            
                28.80
             | 
            
                28.70
             |                     
            
                8.28
             |                                 
            
                1,190
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2015
             | 
            
                +0.10 / +0.35%
             |             
            
                28.70
             |           
            
                28.80
             |               
            
                28.70
             |                           
            
                28.80
             | 
            
                28.75
             |                     
            
                8.28
             |                                 
            
                510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2015
             | 
            
                +0.10 / +0.35%
             |             
            
                28.80
             |           
            
                28.80
             |               
            
                28.60
             |                           
            
                28.70
             | 
            
                28.73
             |                     
            
                8.25
             |                                 
            
                1,160
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2015
             | 
            
                +0.10 / +0.35%
             |             
            
                28.50
             |           
            
                28.60
             |               
            
                28.50
             |                           
            
                28.60
             | 
            
                28.55
             |                     
            
                8.22
             |                                 
            
                59,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2015
             | 
            
                -1.00 / -3.39%
             |             
            
                28.70
             |           
            
                28.70
             |               
            
                28.50
             |                           
            
                28.50
             | 
            
                28.60
             |                     
            
                8.20
             |                                 
            
                1,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2015
             | 
            
                +0.80 / +2.79%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                29.40
             |                           
            
                29.50
             | 
            
                29.48
             |                     
            
                8.48
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2015
             | 
            
                +0.10 / +0.35%
             |             
            
                29.00
             |           
            
                29.50
             |               
            
                28.70
             |                           
            
                28.70
             | 
            
                28.79
             |                     
            
                8.25
             |                                 
            
                660
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2015
             | 
            
                +0.80 / +2.88%
             |             
            
                29.00
             |           
            
                29.70
             |               
            
                28.50
             |                           
            
                28.60
             | 
            
                29.55
             |                     
            
                8.22
             |                                 
            
                26,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2015
             | 
            
                -1.20 / -4.14%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                27.80
             |                           
            
                27.80
             | 
            
                28.13
             |                     
            
                7.99
             |                                 
            
                320
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2015
             | 
            
                +0.30 / +1.05%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.25
             |                     
            
                8.34
             |                                 
            
                630
             |  
            
                 
             |                                                              
             
    
         
    
    
 |