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                    Closing price on 7/21/2010
                 |  |  
    
        |           
                
                    | Open | 91.90 |  
                    | High | 91.90 |  
                    | Low | 91.30 |  
                    | Volume | 4,300 |  
                    | Split-adjusted Price | 5.60 |  
                
             | 
 |  NTP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/21/2010 | +0.10 / +0.11% | 91.90 | 91.90 | 91.30 | 91.40 | 91.40 | 5.60 | 4,300 |   |  
            | 7/20/2010 | -0.20 / -0.22% | 92.00 | 92.90 | 91.10 | 91.30 | 91.30 | 5.59 | 54,700 |   |  			
            | 7/19/2010 | -0.50 / -0.54% | 92.50 | 92.50 | 90.00 | 91.50 | 91.50 | 5.60 | 90,700 |   |  
            | 7/16/2010 | +0.30 / +0.33% | 93.00 | 94.00 | 92.00 | 92.00 | 92.00 | 5.63 | 91,500 |   |  			
            | 7/15/2010 | -0.10 / -0.11% | 92.00 | 92.00 | 91.50 | 91.70 | 91.70 | 5.61 | 23,100 |   |  
            | 7/14/2010 | -1.20 / -1.29% | 94.50 | 94.50 | 91.80 | 91.80 | 91.80 | 5.62 | 14,900 |   |  			
            | 7/13/2010 | -2.00 / -2.11% | 92.00 | 94.00 | 91.80 | 93.00 | 93.00 | 5.69 | 14,700 |   |  
            | 7/12/2010 | +3.20 / +3.49% | 95.00 | 95.00 | 95.00 | 95.00 | 95.00 | 5.82 | 100 |   |  			
            | 7/9/2010 | +0.30 / +0.33% | 91.50 | 92.00 | 91.00 | 91.80 | 91.80 | 5.62 | 9,000 |   |  
            | 7/8/2010 | 0.00 / 0.00% | 92.00 | 92.00 | 91.40 | 91.50 | 91.50 | 5.60 | 10,700 |   |  			
            | 7/7/2010 | -0.50 / -0.54% | 92.00 | 92.00 | 91.30 | 91.50 | 91.50 | 5.60 | 43,300 |   |  
            | 7/6/2010 | -1.00 / -1.08% | 94.00 | 94.00 | 92.00 | 92.00 | 92.00 | 5.63 | 24,800 |   |  			
            | 7/5/2010 | -1.00 / -1.06% | 94.00 | 95.00 | 93.00 | 93.00 | 93.00 | 5.69 | 28,000 |   |  
            | 7/2/2010 | -1.00 / -1.05% | 95.00 | 95.10 | 93.50 | 94.00 | 94.00 | 5.76 | 27,900 |   |  			
            | 7/1/2010 | -5.30 / -5.28% | 97.40 | 97.40 | 95.00 | 95.00 | 95.00 | 5.82 | 15,500 |   |  
            | 6/30/2010 | +0.80 / +0.80% | 100.30 | 100.30 | 92.50 | 100.30 | 100.30 | 6.14 | 145,700 |   |  			
            | 6/29/2010 | +6.50 / +6.99% | 93.00 | 99.50 | 92.10 | 99.50 | 99.50 | 6.09 | 28,300 |   |  
            | 6/28/2010 | -0.70 / -0.75% | 93.00 | 93.00 | 93.00 | 93.00 | 93.00 | 5.69 | 5,700 |   |  			
            | 6/25/2010 | +0.80 / +0.86% | 91.60 | 93.70 | 91.30 | 93.70 | 93.70 | 5.74 | 14,700 |   |  
            | 6/24/2010 | +0.90 / +0.98% | 92.90 | 92.90 | 92.00 | 92.90 | 92.90 | 5.69 | 19,000 |   |  			
            | 6/23/2010 | +0.20 / +0.22% | 89.20 | 92.00 | 89.20 | 92.00 | 92.00 | 5.63 | 15,400 |   |  
            | 6/22/2010 | -1.70 / -1.82% | 92.50 | 92.50 | 91.80 | 91.80 | 91.80 | 5.62 | 43,700 |   |  			
            | 6/21/2010 | -0.50 / -0.53% | 94.00 | 94.00 | 93.00 | 93.50 | 93.50 | 5.73 | 51,500 |   |  
            | 6/18/2010 | +0.40 / +0.43% | 95.10 | 95.10 | 93.70 | 94.00 | 94.00 | 5.76 | 5,600 |   |  			
            | 6/17/2010 | -1.00 / -1.06% | 94.10 | 94.10 | 93.50 | 93.60 | 93.60 | 5.73 | 22,200 |   |  
            | 6/16/2010 | +0.80 / +0.85% | 94.00 | 96.00 | 94.00 | 94.60 | 94.60 | 5.79 | 9,600 |   |  			
            | 6/15/2010 | +0.20 / +0.21% | 93.80 | 93.90 | 93.50 | 93.80 | 93.80 | 5.74 | 50,500 |   |  
            | 6/14/2010 | -0.90 / -0.95% | 94.50 | 94.50 | 93.00 | 93.60 | 93.60 | 5.73 | 39,600 |   |  			
            | 6/11/2010 | +0.60 / +0.64% | 94.00 | 94.50 | 93.50 | 94.50 | 94.50 | 5.79 | 30,000 |   |  
            | 6/10/2010 | +0.90 / +0.97% | 93.00 | 93.90 | 93.00 | 93.90 | 93.90 | 5.75 | 18,300 |   |  |