| 
                 
                    Closing price on 10/28/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    14.90 | 
                 
                
                    | High | 
                    15.30 | 
                 
                
                    | Low | 
                    14.50 | 
                     
                
                    | Volume | 
                    160,300 | 
                                 
                
                    | Split-adjusted Price | 
                    7.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NBB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/28/2013
             | 
            
                -1.00 / -6.45%
             |             
            
                14.90
             |           
            
                15.30
             |               
            
                14.50
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                7.20
             |                                 
            
                160,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2013
             | 
            
                -0.10 / -0.64%
             |             
            
                15.00
             |           
            
                15.70
             |               
            
                15.00
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                7.70
             |                                 
            
                224,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2013
             | 
            
                +1.00 / +6.85%
             |             
            
                14.90
             |           
            
                15.60
             |               
            
                14.70
             |                           
            
                15.60
             | 
            
                15.60
             |                     
            
                7.75
             |                                 
            
                671,670
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2013
             | 
            
                +0.90 / +6.57%
             |             
            
                13.80
             |           
            
                14.60
             |               
            
                13.70
             |                           
            
                14.60
             | 
            
                14.60
             |                     
            
                7.25
             |                                 
            
                271,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2013
             | 
            
                +0.70 / +5.38%
             |             
            
                13.00
             |           
            
                13.90
             |               
            
                13.00
             |                           
            
                13.70
             | 
            
                13.70
             |                     
            
                6.81
             |                                 
            
                302,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2013
             | 
            
                -0.50 / -3.70%
             |             
            
                12.90
             |           
            
                13.40
             |               
            
                12.70
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                6.46
             |                                 
            
                340,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/18/2013
             | 
            
                +0.20 / +1.50%
             |             
            
                13.20
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.50
             | 
            
                13.50
             |                     
            
                6.71
             |                                 
            
                17,090
             |            
            
                 
             |                                       
         
    
        
            | 
                10/17/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                13.10
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.61
             |                                 
            
                23,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                6.56
             |                                 
            
                14,280
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2013
             | 
            
                -0.10 / -0.75%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                6.56
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                12.80
             |           
            
                13.30
             |               
            
                12.80
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.61
             |                                 
            
                18,860
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.90
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                6.56
             |                                 
            
                26,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/10/2013
             | 
            
                -0.50 / -3.68%
             |             
            
                13.50
             |           
            
                13.70
             |               
            
                13.10
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                6.51
             |                                 
            
                16,390
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2013
             | 
            
                +0.60 / +4.62%
             |             
            
                13.50
             |           
            
                13.60
             |               
            
                13.10
             |                           
            
                13.60
             | 
            
                13.60
             |                     
            
                6.76
             |                                 
            
                44,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2013
             | 
            
                +0.20 / +1.56%
             |             
            
                12.70
             |           
            
                13.60
             |               
            
                12.70
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                6.46
             |                                 
            
                53,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2013
             | 
            
                +0.20 / +1.59%
             |             
            
                12.60
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                6.36
             |                                 
            
                11,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2013
             | 
            
                -0.50 / -3.82%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.60
             |                     
            
                6.26
             |                                 
            
                12,720
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2013
             | 
            
                -0.20 / -1.50%
             |             
            
                12.80
             |           
            
                13.30
             |               
            
                12.70
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                6.51
             |                                 
            
                4,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                13.00
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.61
             |                                 
            
                13,290
             |            
            
                 
             |                                       
         
    
        
            | 
                10/1/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.30
             |           
            
                13.40
             |               
            
                12.90
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                6.61
             |                                 
            
                51,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/30/2013
             | 
            
                +0.10 / +0.76%
             |             
            
                13.30
             |           
            
                13.40
             |               
            
                13.10
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                6.56
             |                                 
            
                21,770
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2013
             | 
            
                +0.70 / +5.65%
             |             
            
                12.60
             |           
            
                13.20
             |               
            
                12.40
             |                           
            
                13.10
             | 
            
                13.10
             |                     
            
                6.51
             |                                 
            
                56,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.40
             |           
            
                12.60
             |               
            
                12.40
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                6.16
             |                                 
            
                8,740
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2013
             | 
            
                +0.40 / +3.33%
             |             
            
                12.20
             |           
            
                12.80
             |               
            
                12.00
             |                           
            
                12.40
             | 
            
                12.40
             |                     
            
                6.16
             |                                 
            
                19,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2013
             | 
            
                -0.20 / -1.64%
             |             
            
                12.00
             |           
            
                12.30
             |               
            
                11.90
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.96
             |                                 
            
                14,550
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2013
             | 
            
                +0.20 / +1.67%
             |             
            
                12.00
             |           
            
                12.40
             |               
            
                12.00
             |                           
            
                12.20
             | 
            
                12.20
             |                     
            
                6.06
             |                                 
            
                3,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.96
             |                                 
            
                1,060
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.10
             |               
            
                11.80
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.96
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2013
             | 
            
                0.00 / 0.00%
             |             
            
                11.90
             |           
            
                12.10
             |               
            
                11.50
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.96
             |                                 
            
                2,910
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.70
             |                           
            
                12.00
             | 
            
                12.00
             |                     
            
                5.96
             |                                 
            
                6,320
             |  
            
                 
             |                                                              
             
    
         
    
    
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