| 
                 
                    Closing price on 3/13/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.80 | 
                 
                
                    | High | 
                    12.90 | 
                 
                
                    | Low | 
                    12.70 | 
                     
                
                    | Volume | 
                    8,200 | 
                                 
                
                    | Split-adjusted Price | 
                    2.76 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NBC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.80
             |           
            
                12.90
             |               
            
                12.70
             |                           
            
                12.90
             | 
            
                12.78
             |                     
            
                2.76
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2013
             | 
            
                +0.10 / +0.78%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                2.76
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2013
             | 
            
                +0.20 / +1.59%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.60
             |                           
            
                12.80
             | 
            
                12.65
             |                     
            
                2.74
             |                                 
            
                13,033
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2013
             | 
            
                -0.10 / -0.79%
             |             
            
                12.70
             |           
            
                12.80
             |               
            
                12.60
             |                           
            
                12.60
             | 
            
                12.66
             |                     
            
                2.69
             |                                 
            
                19,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2013
             | 
            
                -0.10 / -0.78%
             |             
            
                12.80
             |           
            
                12.90
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.76
             |                     
            
                2.72
             |                                 
            
                12,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.70
             |                           
            
                12.80
             | 
            
                12.81
             |                     
            
                2.74
             |                                 
            
                17,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2013
             | 
            
                +0.10 / +0.79%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.88
             |                     
            
                2.74
             |                                 
            
                14,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2013
             | 
            
                -0.30 / -2.31%
             |             
            
                13.00
             |           
            
                13.10
             |               
            
                12.70
             |                           
            
                12.70
             | 
            
                12.99
             |                     
            
                2.72
             |                                 
            
                13,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.00
             |                     
            
                2.78
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2013
             | 
            
                -0.70 / -5.11%
             |             
            
                13.50
             |           
            
                13.60
             |               
            
                13.00
             |                           
            
                13.00
             | 
            
                13.02
             |                     
            
                2.78
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2013
             | 
            
                +0.90 / +7.03%
             |             
            
                12.90
             |           
            
                13.70
             |               
            
                12.80
             |                           
            
                13.70
             | 
            
                12.82
             |                     
            
                2.93
             |                                 
            
                21,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2013
             | 
            
                -0.50 / -3.76%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.97
             |                     
            
                2.74
             |                                 
            
                14,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2013
             | 
            
                -0.10 / -0.75%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.31
             |                     
            
                2.84
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                13.20
             |                           
            
                13.40
             | 
            
                13.27
             |                     
            
                2.87
             |                                 
            
                5,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2013
             | 
            
                -0.20 / -1.47%
             |             
            
                13.70
             |           
            
                13.70
             |               
            
                13.40
             |                           
            
                13.40
             | 
            
                13.58
             |                     
            
                2.87
             |                                 
            
                28,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.60
             |           
            
                13.60
             |               
            
                13.50
             |                           
            
                13.60
             | 
            
                13.59
             |                     
            
                2.91
             |                                 
            
                17,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2013
             | 
            
                +0.10 / +0.74%
             |             
            
                13.60
             |           
            
                13.80
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.66
             |                     
            
                2.91
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2013
             | 
            
                -0.10 / -0.74%
             |             
            
                13.50
             |           
            
                13.60
             |               
            
                13.50
             |                           
            
                13.50
             | 
            
                13.59
             |                     
            
                2.89
             |                                 
            
                2,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2013
             | 
            
                +0.40 / +3.03%
             |             
            
                13.50
             |           
            
                13.60
             |               
            
                13.30
             |                           
            
                13.60
             | 
            
                13.44
             |                     
            
                2.91
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                2.82
             |                                 
            
                3,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.20
             |               
            
                13.00
             |                           
            
                13.20
             | 
            
                13.19
             |                     
            
                2.82
             |                                 
            
                9,166
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                2.82
             |                                 
            
                22,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.30
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                2.82
             |                                 
            
                15,690
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.40
             |               
            
                13.00
             |                           
            
                13.20
             | 
            
                13.25
             |                     
            
                2.82
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2013
             | 
            
                -0.20 / -1.49%
             |             
            
                13.30
             |           
            
                13.50
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.32
             |                     
            
                2.82
             |                                 
            
                13,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2013
             | 
            
                +0.10 / +0.75%
             |             
            
                13.00
             |           
            
                13.50
             |               
            
                13.00
             |                           
            
                13.40
             | 
            
                13.27
             |                     
            
                2.87
             |                                 
            
                24,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.40
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.31
             |                     
            
                2.84
             |                                 
            
                46,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2013
             | 
            
                +0.20 / +1.53%
             |             
            
                13.10
             |           
            
                13.30
             |               
            
                13.10
             |                           
            
                13.30
             | 
            
                13.14
             |                     
            
                2.84
             |                                 
            
                13,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2013
             | 
            
                +0.10 / +0.77%
             |             
            
                13.10
             |           
            
                13.10
             |               
            
                13.00
             |                           
            
                13.10
             | 
            
                13.04
             |                     
            
                2.80
             |                                 
            
                23,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2013
             | 
            
                +0.30 / +2.36%
             |             
            
                12.70
             |           
            
                13.10
             |               
            
                12.70
             |                           
            
                13.00
             | 
            
                12.93
             |                     
            
                2.78
             |                                 
            
                8,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |