| 
                 
                    Closing price on 10/9/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    23.10 | 
                 
                
                    | High | 
                    23.20 | 
                 
                
                    | Low | 
                    22.80 | 
                     
                
                    | Volume | 
                    555,310 | 
                                 
                
                    | Split-adjusted Price | 
                    14.67 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NBB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/9/2014
             | 
            
                +0.20 / +0.88%
             |             
            
                23.10
             |           
            
                23.20
             |               
            
                22.80
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                14.67
             |                                 
            
                555,310
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2014
             | 
            
                +0.20 / +0.88%
             |             
            
                22.90
             |           
            
                23.30
             |               
            
                22.60
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                14.55
             |                                 
            
                1,340,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2014
             | 
            
                -0.20 / -0.88%
             |             
            
                22.80
             |           
            
                22.90
             |               
            
                22.50
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                14.42
             |                                 
            
                495,110
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2014
             | 
            
                -0.10 / -0.44%
             |             
            
                23.30
             |           
            
                23.30
             |               
            
                22.70
             |                           
            
                22.80
             | 
            
                22.80
             |                     
            
                14.55
             |                                 
            
                496,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2014
             | 
            
                +0.20 / +0.88%
             |             
            
                22.60
             |           
            
                23.40
             |               
            
                22.60
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                14.61
             |                                 
            
                692,790
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2014
             | 
            
                -0.40 / -1.73%
             |             
            
                23.10
             |           
            
                23.10
             |               
            
                22.60
             |                           
            
                22.70
             | 
            
                22.70
             |                     
            
                14.48
             |                                 
            
                663,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2014
             | 
            
                +0.70 / +3.13%
             |             
            
                22.60
             |           
            
                23.20
             |               
            
                22.50
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                14.74
             |                                 
            
                862,150
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2014
             | 
            
                -0.50 / -2.18%
             |             
            
                22.80
             |           
            
                22.90
             |               
            
                22.20
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                14.29
             |                                 
            
                609,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2014
             | 
            
                -1.00 / -4.18%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                14.61
             |                                 
            
                630,960
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2014
             | 
            
                0.00 / 0.00%
             |             
            
                24.70
             |           
            
                24.80
             |               
            
                23.00
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                15.25
             |                                 
            
                1,283,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2014
             | 
            
                +1.50 / +6.70%
             |             
            
                22.40
             |           
            
                23.90
             |               
            
                22.40
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                15.25
             |                                 
            
                1,765,410
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2014
             | 
            
                +0.60 / +2.75%
             |             
            
                22.00
             |           
            
                22.40
             |               
            
                21.80
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                14.29
             |                                 
            
                879,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2014
             | 
            
                +0.10 / +0.46%
             |             
            
                21.50
             |           
            
                22.00
             |               
            
                21.50
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                13.91
             |                                 
            
                359,740
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2014
             | 
            
                +0.10 / +0.46%
             |             
            
                21.60
             |           
            
                22.20
             |               
            
                21.60
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                13.84
             |                                 
            
                457,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2014
             | 
            
                +0.50 / +2.37%
             |             
            
                21.10
             |           
            
                22.20
             |               
            
                20.80
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                13.78
             |                                 
            
                575,330
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2014
             | 
            
                -0.60 / -2.76%
             |             
            
                21.50
             |           
            
                22.00
             |               
            
                21.10
             |                           
            
                21.10
             | 
            
                21.10
             |                     
            
                13.46
             |                                 
            
                370,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2014
             | 
            
                -0.10 / -0.46%
             |             
            
                22.40
             |           
            
                22.40
             |               
            
                21.50
             |                           
            
                21.70
             | 
            
                21.70
             |                     
            
                13.84
             |                                 
            
                442,980
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2014
             | 
            
                -0.70 / -3.11%
             |             
            
                21.90
             |           
            
                22.20
             |               
            
                21.40
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                13.91
             |                                 
            
                722,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2014
             | 
            
                -0.90 / -3.85%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                22.50
             |                     
            
                14.36
             |                                 
            
                394,720
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2014
             | 
            
                -0.30 / -1.27%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                22.90
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                14.93
             |                                 
            
                446,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2014
             | 
            
                +0.80 / +3.49%
             |             
            
                23.20
             |           
            
                24.20
             |               
            
                23.20
             |                           
            
                23.70
             | 
            
                23.70
             |                     
            
                15.12
             |                                 
            
                1,097,860
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2014
             | 
            
                +0.80 / +3.62%
             |             
            
                22.10
             |           
            
                22.90
             |               
            
                21.70
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                14.61
             |                                 
            
                379,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2014
             | 
            
                -0.50 / -2.21%
             |             
            
                22.70
             |           
            
                22.90
             |               
            
                22.00
             |                           
            
                22.10
             | 
            
                22.10
             |                     
            
                14.10
             |                                 
            
                769,610
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2014
             | 
            
                +0.70 / +3.20%
             |             
            
                22.20
             |           
            
                22.80
             |               
            
                22.00
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                14.42
             |                                 
            
                372,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2014
             | 
            
                -0.30 / -1.35%
             |             
            
                22.20
             |           
            
                22.20
             |               
            
                21.80
             |                           
            
                21.90
             | 
            
                21.90
             |                     
            
                13.97
             |                                 
            
                312,980
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2014
             | 
            
                0.00 / 0.00%
             |             
            
                22.20
             |           
            
                22.30
             |               
            
                21.90
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                14.16
             |                                 
            
                344,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2014
             | 
            
                +0.40 / +1.83%
             |             
            
                23.00
             |           
            
                23.00
             |               
            
                22.20
             |                           
            
                22.20
             | 
            
                22.20
             |                     
            
                14.16
             |                                 
            
                318,280
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2014
             | 
            
                +0.30 / +1.40%
             |             
            
                21.70
             |           
            
                22.00
             |               
            
                21.60
             |                           
            
                21.80
             | 
            
                21.80
             |                     
            
                13.91
             |                                 
            
                211,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2014
             | 
            
                +0.50 / +2.38%
             |             
            
                21.50
             |           
            
                21.90
             |               
            
                21.30
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                13.72
             |                                 
            
                552,170
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2014
             | 
            
                -1.40 / -6.25%
             |             
            
                22.40
             |           
            
                22.50
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                13.40
             |                                 
            
                397,500
             |  
            
                 
             |                                                              
             
    
         
    
    
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