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                    Closing price on 10/12/2010
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                    | Open | 81.50 |  
                    | High | 82.00 |  
                    | Low | 80.00 |  
                    | Volume | 44,670 |  
                    | Split-adjusted Price | 25.70 |  
                
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 |  NBB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/12/2010 | +1.00 / +1.25% | 81.50 | 82.00 | 80.00 | 81.00 | 81.00 | 25.70 | 44,670 |   |  
            | 10/11/2010 | -2.00 / -2.44% | 82.00 | 82.00 | 80.00 | 80.00 | 80.00 | 25.39 | 29,170 |   |  			
            | 10/8/2010 | +2.50 / +3.14% | 81.50 | 82.00 | 80.00 | 82.00 | 82.00 | 26.02 | 48,820 |   |  
            | 10/7/2010 | -2.00 / -2.45% | 78.50 | 82.00 | 78.50 | 79.50 | 79.50 | 25.23 | 9,470 |   |  			
            | 10/6/2010 | +1.50 / +1.88% | 82.00 | 82.00 | 80.00 | 81.50 | 81.50 | 25.86 | 7,530 |   |  
            | 10/5/2010 | -2.00 / -2.44% | 82.00 | 82.00 | 80.00 | 80.00 | 80.00 | 25.39 | 35,700 |   |  			
            | 10/4/2010 | 0.00 / 0.00% | 82.00 | 82.00 | 81.50 | 82.00 | 82.00 | 26.02 | 4,800 |   |  
            | 10/1/2010 | 0.00 / 0.00% | 79.50 | 82.00 | 79.00 | 82.00 | 82.00 | 26.02 | 13,720 |   |  			
            | 9/30/2010 | 0.00 / 0.00% | 78.50 | 82.00 | 78.50 | 82.00 | 82.00 | 26.02 | 6,200 |   |  
            | 9/29/2010 | -0.50 / -0.61% | 80.00 | 82.50 | 80.00 | 82.00 | 82.00 | 26.02 | 11,540 |   |  			
            | 9/28/2010 | 0.00 / 0.00% | 82.00 | 82.50 | 82.00 | 82.50 | 82.50 | 26.18 | 20,020 |   |  
            | 9/27/2010 | -0.50 / -0.60% | 83.00 | 83.00 | 82.00 | 82.50 | 82.50 | 26.18 | 30,020 |   |  			
            | 9/24/2010 | 0.00 / 0.00% | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 26.34 | 6,010 |   |  
            | 9/23/2010 | 0.00 / 0.00% | 83.00 | 83.00 | 80.00 | 83.00 | 83.00 | 26.34 | 9,690 |   |  			
            | 9/22/2010 | 0.00 / 0.00% | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 26.34 | 1,520 |   |  
            | 9/21/2010 | 0.00 / 0.00% | 83.00 | 83.00 | 81.00 | 83.00 | 83.00 | 26.34 | 2,630 |   |  			
            | 9/20/2010 | -0.50 / -0.60% | 83.50 | 83.50 | 81.00 | 83.00 | 83.00 | 26.34 | 11,010 |   |  
            | 9/17/2010 | 0.00 / 0.00% | 83.00 | 84.00 | 83.00 | 83.50 | 83.50 | 26.50 | 118,850 |   |  			
            | 9/16/2010 | +0.50 / +0.60% | 81.50 | 83.50 | 81.50 | 83.50 | 83.50 | 26.50 | 5,760 |   |  
            | 9/15/2010 | -0.50 / -0.60% | 84.00 | 84.00 | 83.00 | 83.00 | 83.00 | 26.34 | 3,510 |   |  			
            | 9/14/2010 | -0.50 / -0.60% | 82.50 | 83.50 | 82.00 | 83.50 | 83.50 | 26.50 | 106,500 |   |  
            | 9/13/2010 | -1.50 / -1.75% | 85.50 | 85.50 | 82.00 | 84.00 | 84.00 | 26.66 | 10,280 |   |  			
            | 9/10/2010 | +4.00 / +4.91% | 84.00 | 85.50 | 83.50 | 85.50 | 85.50 | 27.13 | 33,290 |   |  
            | 9/9/2010 | -1.50 / -1.81% | 82.00 | 83.50 | 81.50 | 81.50 | 81.50 | 25.86 | 12,350 |   |  			
            | 9/8/2010 | +0.50 / +0.61% | 83.00 | 83.00 | 81.00 | 83.00 | 83.00 | 26.34 | 3,460 |   |  
            | 9/7/2010 | +1.50 / +1.85% | 81.50 | 83.50 | 81.50 | 82.50 | 82.50 | 26.18 | 7,520 |   |  			
            | 9/6/2010 | -2.00 / -2.41% | 85.00 | 85.00 | 81.00 | 81.00 | 81.00 | 25.70 | 12,000 |   |  
            | 9/1/2010 | -0.50 / -0.60% | 83.00 | 83.00 | 82.00 | 83.00 | 83.00 | 26.34 | 16,650 |   |  			
            | 8/31/2010 | +2.50 / +3.09% | 83.50 | 84.00 | 83.00 | 83.50 | 83.50 | 26.50 | 23,970 |   |  
            | 8/30/2010 | 0.00 / 0.00% | 84.00 | 84.00 | 78.50 | 81.00 | 81.00 | 25.70 | 33,510 |   |  |  |  
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						| Market Update 
        
            
                Last updated at 3:10:02 PM
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