| 
                 
                    Closing price on 10/10/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    30.90 | 
                 
                
                    | High | 
                    31.50 | 
                 
                
                    | Low | 
                    30.90 | 
                     
                
                    | Volume | 
                    6,900 | 
                                 
                
                    | Split-adjusted Price | 
                    4.05 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NTP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/10/2011
             | 
            
                +0.40 / +1.29%
             |             
            
                30.90
             |           
            
                31.50
             |               
            
                30.90
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                4.05
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2011
             | 
            
                +0.50 / +1.64%
             |             
            
                30.50
             |           
            
                31.00
             |               
            
                29.60
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                10,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2011
             | 
            
                +0.50 / +1.67%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                30.50
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                3.93
             |                                 
            
                2,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2011
             | 
            
                -0.40 / -1.32%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                30.00
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                3.87
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2011
             | 
            
                +0.90 / +3.05%
             |             
            
                30.40
             |           
            
                30.40
             |               
            
                30.40
             |                           
            
                30.40
             | 
            
                30.40
             |                     
            
                3.92
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/3/2011
             | 
            
                -0.50 / -1.67%
             |             
            
                29.50
             |           
            
                29.50
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                3.80
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/30/2011
             | 
            
                -1.00 / -3.23%
             |             
            
                30.00
             |           
            
                30.00
             |               
            
                29.60
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                3.87
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2011
             | 
            
                -0.50 / -1.59%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2011
             | 
            
                +1.50 / +5.00%
             |             
            
                31.00
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                4.06
             |                                 
            
                10,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2011
             | 
            
                -1.00 / -3.23%
             |             
            
                29.60
             |           
            
                30.00
             |               
            
                29.50
             |                           
            
                30.00
             | 
            
                30.00
             |                     
            
                3.87
             |                                 
            
                86,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/26/2011
             | 
            
                -0.40 / -1.27%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2011
             | 
            
                0.00 / 0.00%
             |             
            
                31.00
             |           
            
                31.40
             |               
            
                31.00
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                4.05
             |                                 
            
                2,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2011
             | 
            
                +0.10 / +0.32%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                31.40
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                4.05
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2011
             | 
            
                +0.30 / +0.97%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                31.30
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                4.03
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2011
             | 
            
                -0.30 / -0.96%
             |             
            
                31.10
             |           
            
                31.10
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2011
             | 
            
                +0.30 / +0.97%
             |             
            
                31.30
             |           
            
                31.30
             |               
            
                31.00
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                4.03
             |                                 
            
                6,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2011
             | 
            
                -0.30 / -0.96%
             |             
            
                31.20
             |           
            
                31.60
             |               
            
                31.00
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                15,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2011
             | 
            
                +0.10 / +0.32%
             |             
            
                31.30
             |           
            
                31.30
             |               
            
                31.30
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                4.03
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2011
             | 
            
                -0.10 / -0.32%
             |             
            
                31.00
             |           
            
                31.50
             |               
            
                31.00
             |                           
            
                31.20
             | 
            
                31.20
             |                     
            
                4.02
             |                                 
            
                19,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2011
             | 
            
                -0.20 / -0.63%
             |             
            
                31.10
             |           
            
                32.40
             |               
            
                31.10
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                4.03
             |                                 
            
                12,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2011
             | 
            
                +0.50 / +1.61%
             |             
            
                30.00
             |           
            
                31.50
             |               
            
                30.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                4.06
             |                                 
            
                18,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2011
             | 
            
                0.00 / 0.00%
             |             
            
                30.50
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                14,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2011
             | 
            
                +0.40 / +1.31%
             |             
            
                30.50
             |           
            
                31.10
             |               
            
                30.10
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                4.00
             |                                 
            
                27,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2011
             | 
            
                -0.60 / -1.92%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                30.60
             |                           
            
                30.60
             | 
            
                30.60
             |                     
            
                3.94
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2011
             | 
            
                -0.10 / -0.32%
             |             
            
                31.50
             |           
            
                31.50
             |               
            
                31.20
             |                           
            
                31.20
             | 
            
                31.20
             |                     
            
                4.02
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2011
             | 
            
                -0.90 / -2.80%
             |             
            
                32.60
             |           
            
                32.60
             |               
            
                31.30
             |                           
            
                31.30
             | 
            
                31.30
             |                     
            
                4.03
             |                                 
            
                9,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2011
             | 
            
                +0.70 / +2.22%
             |             
            
                32.00
             |           
            
                32.20
             |               
            
                32.00
             |                           
            
                32.20
             | 
            
                32.20
             |                     
            
                4.15
             |                                 
            
                2,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2011
             | 
            
                -0.60 / -1.87%
             |             
            
                31.00
             |           
            
                32.10
             |               
            
                31.00
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                4.06
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2011
             | 
            
                +0.30 / +0.94%
             |             
            
                33.20
             |           
            
                33.30
             |               
            
                32.10
             |                           
            
                32.10
             | 
            
                32.10
             |                     
            
                4.14
             |                                 
            
                3,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2011
             | 
            
                +1.60 / +5.30%
             |             
            
                31.00
             |           
            
                31.80
             |               
            
                30.30
             |                           
            
                31.80
             | 
            
                31.80
             |                     
            
                4.10
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |