| 
                 
                    Closing price on 3/20/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    67.00 | 
                 
                
                    | High | 
                    70.00 | 
                 
                
                    | Low | 
                    66.00 | 
                     
                
                    | Volume | 
                    50,300 | 
                                 
                
                    | Split-adjusted Price | 
                    3.57 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NTP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/20/2008
             | 
            
                -1.70 / -2.51%
             |             
            
                67.00
             |           
            
                70.00
             |               
            
                66.00
             |                           
            
                66.10
             | 
            
                66.10
             |                     
            
                3.57
             |                                 
            
                50,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2008
             | 
            
                +1.80 / +2.73%
             |             
            
                70.00
             |           
            
                70.80
             |               
            
                66.10
             |                           
            
                67.80
             | 
            
                67.80
             |                     
            
                3.67
             |                                 
            
                170,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2008
             | 
            
                -6.50 / -8.97%
             |             
            
                66.00
             |           
            
                70.00
             |               
            
                65.70
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                3.57
             |                                 
            
                208,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2008
             | 
            
                -5.30 / -6.81%
             |             
            
                75.00
             |           
            
                75.00
             |               
            
                71.50
             |                           
            
                72.50
             | 
            
                72.50
             |                     
            
                3.92
             |                                 
            
                136,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2008
             | 
            
                -0.20 / -0.26%
             |             
            
                78.00
             |           
            
                78.00
             |               
            
                74.00
             |                           
            
                77.80
             | 
            
                77.80
             |                     
            
                4.21
             |                                 
            
                77,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2008
             | 
            
                +1.10 / +1.43%
             |             
            
                77.00
             |           
            
                80.50
             |               
            
                76.50
             |                           
            
                78.00
             | 
            
                78.00
             |                     
            
                4.22
             |                                 
            
                126,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2008
             | 
            
                +2.10 / +2.81%
             |             
            
                75.50
             |           
            
                79.00
             |               
            
                70.00
             |                           
            
                76.90
             | 
            
                76.90
             |                     
            
                4.16
             |                                 
            
                192,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2008
             | 
            
                -5.20 / -6.50%
             |             
            
                81.50
             |           
            
                81.50
             |               
            
                73.80
             |                           
            
                74.80
             | 
            
                74.80
             |                     
            
                4.04
             |                                 
            
                107,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2008
             | 
            
                +4.40 / +5.82%
             |             
            
                83.10
             |           
            
                83.10
             |               
            
                76.00
             |                           
            
                80.00
             | 
            
                80.00
             |                     
            
                4.33
             |                                 
            
                288,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2008
             | 
            
                +6.80 / +9.88%
             |             
            
                75.60
             |           
            
                75.60
             |               
            
                75.60
             |                           
            
                75.60
             | 
            
                75.60
             |                     
            
                4.09
             |                                 
            
                16,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2008
             | 
            
                +1.80 / +2.69%
             |             
            
                68.80
             |           
            
                68.80
             |               
            
                68.80
             |                           
            
                68.80
             | 
            
                68.80
             |                     
            
                3.72
             |                                 
            
                4,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2008
             | 
            
                -0.90 / -1.33%
             |             
            
                61.50
             |           
            
                70.00
             |               
            
                61.20
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                3.62
             |                                 
            
                129,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2008
             | 
            
                -7.10 / -9.47%
             |             
            
                70.20
             |           
            
                70.20
             |               
            
                67.90
             |                           
            
                67.90
             | 
            
                67.90
             |                     
            
                3.67
             |                                 
            
                85,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2008
             | 
            
                -5.20 / -6.48%
             |             
            
                79.80
             |           
            
                79.80
             |               
            
                71.60
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                4.06
             |                                 
            
                83,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2008
             | 
            
                -1.50 / -1.84%
             |             
            
                80.00
             |           
            
                80.20
             |               
            
                78.20
             |                           
            
                80.20
             | 
            
                80.20
             |                     
            
                4.34
             |                                 
            
                53,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2008
             | 
            
                +1.20 / +1.49%
             |             
            
                80.00
             |           
            
                90.00
             |               
            
                80.00
             |                           
            
                81.70
             | 
            
                81.70
             |                     
            
                4.42
             |                                 
            
                74,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2008
             | 
            
                0.00 / 0.00%
             |             
            
                77.00
             |           
            
                84.50
             |               
            
                77.00
             |                           
            
                80.50
             | 
            
                80.50
             |                     
            
                4.35
             |                                 
            
                75,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2008
             | 
            
                -5.60 / -6.50%
             |             
            
                90.00
             |           
            
                90.00
             |               
            
                78.10
             |                           
            
                80.50
             | 
            
                80.50
             |                     
            
                4.35
             |                                 
            
                72,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2008
             | 
            
                +5.60 / +6.96%
             |             
            
                79.00
             |           
            
                86.10
             |               
            
                79.00
             |                           
            
                86.10
             | 
            
                86.10
             |                     
            
                4.66
             |                                 
            
                133,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2008
             | 
            
                -0.50 / -0.62%
             |             
            
                78.20
             |           
            
                83.00
             |               
            
                72.60
             |                           
            
                80.50
             | 
            
                80.50
             |                     
            
                4.35
             |                                 
            
                107,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2008
             | 
            
                -8.00 / -8.99%
             |             
            
                90.00
             |           
            
                90.00
             |               
            
                79.90
             |                           
            
                81.00
             | 
            
                81.00
             |                     
            
                4.38
             |                                 
            
                210,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2008
             | 
            
                -2.00 / -2.20%
             |             
            
                90.00
             |           
            
                93.00
             |               
            
                86.50
             |                           
            
                89.00
             | 
            
                89.00
             |                     
            
                4.81
             |                                 
            
                146,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2008
             | 
            
                -1.00 / -1.09%
             |             
            
                92.00
             |           
            
                92.00
             |               
            
                87.00
             |                           
            
                91.00
             | 
            
                91.00
             |                     
            
                4.92
             |                                 
            
                167,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2008
             | 
            
                -4.50 / -4.66%
             |             
            
                94.90
             |           
            
                94.90
             |               
            
                90.10
             |                           
            
                92.00
             | 
            
                92.00
             |                     
            
                4.97
             |                                 
            
                55,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2008
             | 
            
                -1.50 / -1.53%
             |             
            
                100.00
             |           
            
                100.00
             |               
            
                96.00
             |                           
            
                96.50
             | 
            
                96.50
             |                     
            
                5.22
             |                                 
            
                23,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2008
             | 
            
                +1.00 / +1.03%
             |             
            
                97.20
             |           
            
                100.00
             |               
            
                97.00
             |                           
            
                98.00
             | 
            
                98.00
             |                     
            
                5.30
             |                                 
            
                17,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2008
             | 
            
                -4.00 / -3.96%
             |             
            
                99.00
             |           
            
                99.00
             |               
            
                96.00
             |                           
            
                97.00
             | 
            
                97.00
             |                     
            
                5.24
             |                                 
            
                9,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2008
             | 
            
                -4.00 / -3.81%
             |             
            
                101.00
             |           
            
                102.00
             |               
            
                98.00
             |                           
            
                101.00
             | 
            
                101.00
             |                     
            
                5.46
             |                                 
            
                19,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2008
             | 
            
                +1.50 / +1.45%
             |             
            
                103.00
             |           
            
                105.50
             |               
            
                102.30
             |                           
            
                105.00
             | 
            
                105.00
             |                     
            
                5.68
             |                                 
            
                54,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2008
             | 
            
                -0.50 / -0.48%
             |             
            
                110.00
             |           
            
                113.80
             |               
            
                97.00
             |                           
            
                103.50
             | 
            
                103.50
             |                     
            
                5.60
             |                                 
            
                43,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |