| 
                 
                    Closing price on 6/15/2010
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    25.50 | 
                 
                
                    | High | 
                    25.70 | 
                 
                
                    | Low | 
                    25.40 | 
                     
                
                    | Volume | 
                    113,390 | 
                                 
                
                    | Split-adjusted Price | 
                    19.77 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
TTF Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/15/2010
             | 
            
                -0.20 / -0.77%
             |             
            
                25.50
             |           
            
                25.70
             |               
            
                25.40
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                19.77
             |                                 
            
                113,390
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2010
             | 
            
                +0.40 / +1.57%
             |             
            
                25.90
             |           
            
                25.90
             |               
            
                25.20
             |                           
            
                25.90
             | 
            
                25.90
             |                     
            
                19.92
             |                                 
            
                178,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2010
             | 
            
                +1.20 / +4.94%
             |             
            
                24.40
             |           
            
                25.50
             |               
            
                24.20
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                19.61
             |                                 
            
                234,020
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2010
             | 
            
                +0.40 / +1.67%
             |             
            
                24.00
             |           
            
                24.30
             |               
            
                23.90
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                18.69
             |                                 
            
                88,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2010
             | 
            
                +0.60 / +2.58%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                23.30
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                18.38
             |                                 
            
                49,390
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2010
             | 
            
                0.00 / 0.00%
             |             
            
                22.80
             |           
            
                23.30
             |               
            
                22.30
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                17.92
             |                                 
            
                47,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2010
             | 
            
                -1.00 / -4.12%
             |             
            
                23.20
             |           
            
                24.00
             |               
            
                23.10
             |                           
            
                23.30
             | 
            
                23.30
             |                     
            
                17.92
             |                                 
            
                228,970
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2010
             | 
            
                -0.60 / -2.41%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                24.30
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                18.69
             |                                 
            
                73,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2010
             | 
            
                0.00 / 0.00%
             |             
            
                25.30
             |           
            
                25.30
             |               
            
                24.60
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                19.15
             |                                 
            
                95,220
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2010
             | 
            
                0.00 / 0.00%
             |             
            
                24.50
             |           
            
                25.00
             |               
            
                24.50
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                19.15
             |                                 
            
                148,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2010
             | 
            
                +1.00 / +4.18%
             |             
            
                23.20
             |           
            
                25.00
             |               
            
                23.20
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                19.15
             |                                 
            
                405,730
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2010
             | 
            
                +1.00 / +4.37%
             |             
            
                23.50
             |           
            
                24.00
             |               
            
                22.00
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                18.38
             |                                 
            
                160,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2010
             | 
            
                +1.00 / +4.57%
             |             
            
                22.90
             |           
            
                22.90
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                17.61
             |                                 
            
                131,430
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2010
             | 
            
                +0.30 / +1.39%
             |             
            
                21.60
             |           
            
                22.00
             |               
            
                21.60
             |                           
            
                21.90
             | 
            
                21.90
             |                     
            
                16.84
             |                                 
            
                74,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2010
             | 
            
                0.00 / 0.00%
             |             
            
                21.60
             |           
            
                22.40
             |               
            
                21.50
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                16.61
             |                                 
            
                105,440
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2010
             | 
            
                -0.80 / -3.57%
             |             
            
                22.40
             |           
            
                22.40
             |               
            
                21.60
             |                           
            
                21.60
             | 
            
                21.60
             |                     
            
                16.61
             |                                 
            
                59,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2010
             | 
            
                -0.50 / -2.18%
             |             
            
                23.00
             |           
            
                23.00
             |               
            
                22.00
             |                           
            
                22.40
             | 
            
                22.40
             |                     
            
                17.23
             |                                 
            
                59,380
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2010
             | 
            
                -1.20 / -4.98%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                17.61
             |                                 
            
                109,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2010
             | 
            
                +0.20 / +0.84%
             |             
            
                23.10
             |           
            
                24.10
             |               
            
                23.10
             |                           
            
                24.10
             | 
            
                24.10
             |                     
            
                18.54
             |                                 
            
                82,490
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2010
             | 
            
                -0.70 / -2.85%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                23.80
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                18.38
             |                                 
            
                71,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/18/2010
             | 
            
                +0.10 / +0.41%
             |             
            
                23.80
             |           
            
                24.90
             |               
            
                23.80
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                18.92
             |                                 
            
                52,590
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2010
             | 
            
                -0.90 / -3.54%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                18.84
             |                                 
            
                145,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2010
             | 
            
                +0.30 / +1.20%
             |             
            
                25.30
             |           
            
                25.50
             |               
            
                25.20
             |                           
            
                25.40
             | 
            
                25.40
             |                     
            
                19.54
             |                                 
            
                125,280
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2010
             | 
            
                +0.10 / +0.40%
             |             
            
                25.00
             |           
            
                25.40
             |               
            
                24.60
             |                           
            
                25.10
             | 
            
                25.10
             |                     
            
                19.31
             |                                 
            
                147,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2010
             | 
            
                -0.60 / -2.34%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                263,310
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2010
             | 
            
                +0.60 / +2.40%
             |             
            
                25.90
             |           
            
                25.90
             |               
            
                25.20
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                19.69
             |                                 
            
                231,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2010
             | 
            
                -13.20 / -34.55%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                19.23
             |                                 
            
                203,190
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2010
             | 
            
                -0.80 / -2.05%
             |             
            
                38.30
             |           
            
                39.00
             |               
            
                37.50
             |                           
            
                38.20
             | 
            
                38.20
             |                     
            
                19.59
             |                                 
            
                495,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2010
             | 
            
                +0.70 / +1.83%
             |             
            
                38.50
             |           
            
                39.40
             |               
            
                38.40
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                20.00
             |                                 
            
                312,420
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2010
             | 
            
                -1.00 / -2.54%
             |             
            
                39.30
             |           
            
                39.30
             |               
            
                38.30
             |                           
            
                38.30
             | 
            
                38.30
             |                     
            
                19.64
             |                                 
            
                212,480
             |  
            
                 
             |                                                              
             
    
         
    
    
 |