| 
                 
                    Closing price on 8/4/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    23.00 | 
                 
                
                    | High | 
                    23.20 | 
                 
                
                    | Low | 
                    23.00 | 
                     
                
                    | Volume | 
                    39,380 | 
                                 
                
                    | Split-adjusted Price | 
                    17.69 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
TTF Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/4/2010
             | 
            
                -0.30 / -1.29%
             |             
            
                23.00
             |           
            
                23.20
             |               
            
                23.00
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                17.69
             |                                 
            
                39,380
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2010
             | 
            
                +0.30 / +1.30%
             |             
            
                23.00
             |           
            
                23.60
             |               
            
                23.00
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                17.92
             |                                 
            
                65,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2010
             | 
            
                +0.40 / +1.77%
             |             
            
                23.00
             |           
            
                23.30
             |               
            
                22.60
             |                           
            
                23.00
             | 
            
                23.00
             |                     
            
                17.69
             |                                 
            
                50,480
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2010
             | 
            
                0.00 / 0.00%
             |             
            
                23.00
             |           
            
                23.00
             |               
            
                22.30
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                17.38
             |                                 
            
                110,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2010
             | 
            
                -0.30 / -1.31%
             |             
            
                22.50
             |           
            
                22.70
             |               
            
                22.50
             |                           
            
                22.60
             | 
            
                22.60
             |                     
            
                17.38
             |                                 
            
                44,020
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2010
             | 
            
                -0.60 / -2.55%
             |             
            
                23.80
             |           
            
                24.10
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                17.61
             |                                 
            
                75,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2010
             | 
            
                +0.30 / +1.29%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                23.00
             |                           
            
                23.50
             | 
            
                23.50
             |                     
            
                18.07
             |                                 
            
                36,040
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2010
             | 
            
                -0.40 / -1.69%
             |             
            
                24.20
             |           
            
                24.20
             |               
            
                23.20
             |                           
            
                23.20
             | 
            
                23.20
             |                     
            
                17.84
             |                                 
            
                55,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2010
             | 
            
                +0.50 / +2.16%
             |             
            
                23.70
             |           
            
                23.70
             |               
            
                23.40
             |                           
            
                23.60
             | 
            
                23.60
             |                     
            
                18.15
             |                                 
            
                39,520
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2010
             | 
            
                -1.10 / -4.55%
             |             
            
                23.90
             |           
            
                24.50
             |               
            
                23.10
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                17.77
             |                                 
            
                169,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2010
             | 
            
                0.00 / 0.00%
             |             
            
                24.40
             |           
            
                24.40
             |               
            
                24.00
             |                           
            
                24.20
             | 
            
                24.20
             |                     
            
                18.61
             |                                 
            
                58,390
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2010
             | 
            
                0.00 / 0.00%
             |             
            
                24.20
             |           
            
                24.40
             |               
            
                24.00
             |                           
            
                24.20
             | 
            
                24.20
             |                     
            
                18.61
             |                                 
            
                78,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2010
             | 
            
                -0.40 / -1.63%
             |             
            
                24.60
             |           
            
                24.70
             |               
            
                24.20
             |                           
            
                24.20
             | 
            
                24.20
             |                     
            
                18.61
             |                                 
            
                73,280
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2010
             | 
            
                +0.30 / +1.23%
             |             
            
                24.40
             |           
            
                24.80
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                18.92
             |                                 
            
                83,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2010
             | 
            
                -0.10 / -0.41%
             |             
            
                24.50
             |           
            
                24.90
             |               
            
                24.00
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                18.69
             |                                 
            
                59,550
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2010
             | 
            
                -0.10 / -0.41%
             |             
            
                23.90
             |           
            
                24.90
             |               
            
                23.90
             |                           
            
                24.40
             | 
            
                24.40
             |                     
            
                18.77
             |                                 
            
                37,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2010
             | 
            
                +1.10 / +4.70%
             |             
            
                24.00
             |           
            
                24.50
             |               
            
                23.60
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                18.84
             |                                 
            
                88,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2010
             | 
            
                +0.10 / +0.43%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                23.30
             |                           
            
                23.40
             | 
            
                23.40
             |                     
            
                18.00
             |                                 
            
                41,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2010
             | 
            
                -0.50 / -2.10%
             |             
            
                23.80
             |           
            
                24.00
             |               
            
                23.20
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                17.92
             |                                 
            
                105,260
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2010
             | 
            
                -0.20 / -0.83%
             |             
            
                24.00
             |           
            
                24.50
             |               
            
                23.80
             |                           
            
                23.80
             | 
            
                23.80
             |                     
            
                18.31
             |                                 
            
                34,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2010
             | 
            
                -0.20 / -0.83%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.00
             |                     
            
                18.46
             |                                 
            
                108,780
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2010
             | 
            
                -0.80 / -3.20%
             |             
            
                24.60
             |           
            
                24.90
             |               
            
                24.20
             |                           
            
                24.20
             | 
            
                24.20
             |                     
            
                18.61
             |                                 
            
                53,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2010
             | 
            
                +0.30 / +1.21%
             |             
            
                24.60
             |           
            
                25.00
             |               
            
                24.40
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                145,860
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2010
             | 
            
                -0.30 / -1.20%
             |             
            
                24.80
             |           
            
                25.00
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                19.00
             |                                 
            
                31,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2010
             | 
            
                -0.90 / -3.47%
             |             
            
                25.10
             |           
            
                25.20
             |               
            
                24.90
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                118,620
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2010
             | 
            
                +0.90 / +3.60%
             |             
            
                24.50
             |           
            
                25.90
             |               
            
                24.50
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                19.92
             |                                 
            
                244,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2010
             | 
            
                0.00 / 0.00%
             |             
            
                25.10
             |           
            
                25.10
             |               
            
                24.80
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                169,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2010
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.10
             |               
            
                24.50
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                57,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2010
             | 
            
                +0.10 / +0.40%
             |             
            
                24.50
             |           
            
                25.00
             |               
            
                24.10
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                80,650
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2010
             | 
            
                +0.50 / +2.05%
             |             
            
                24.70
             |           
            
                25.50
             |               
            
                24.40
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                19.15
             |                                 
            
                159,290
             |  
            
                 
             |                                                              
             
    
         
    
    
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