| 
                 
                    Closing price on 9/15/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    36.70 | 
                 
                
                    | High | 
                    36.80 | 
                 
                
                    | Low | 
                    35.30 | 
                     
                
                    | Volume | 
                    430 | 
                                 
                
                    | Split-adjusted Price | 
                    13.39 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CTD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/15/2011
             | 
            
                -1.40 / -3.81%
             |             
            
                36.70
             |           
            
                36.80
             |               
            
                35.30
             |                           
            
                35.30
             | 
            
                35.30
             |                     
            
                13.39
             |                                 
            
                430
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                36.50
             |           
            
                36.70
             |               
            
                35.50
             |                           
            
                36.70
             | 
            
                36.70
             |                     
            
                13.92
             |                                 
            
                2,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2011
             | 
            
                +0.20 / +0.55%
             |             
            
                36.50
             |           
            
                36.70
             |               
            
                36.50
             |                           
            
                36.70
             | 
            
                36.70
             |                     
            
                13.92
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2011
             | 
            
                -0.10 / -0.27%
             |             
            
                36.10
             |           
            
                36.50
             |               
            
                36.10
             |                           
            
                36.50
             | 
            
                36.50
             |                     
            
                13.84
             |                                 
            
                10,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2011
             | 
            
                +0.20 / +0.55%
             |             
            
                36.00
             |           
            
                36.60
             |               
            
                36.00
             |                           
            
                36.60
             | 
            
                36.60
             |                     
            
                13.88
             |                                 
            
                15,810
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2011
             | 
            
                +0.40 / +1.11%
             |             
            
                36.90
             |           
            
                36.90
             |               
            
                35.50
             |                           
            
                36.40
             | 
            
                36.40
             |                     
            
                13.81
             |                                 
            
                19,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2011
             | 
            
                +0.40 / +1.12%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                35.80
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                13.65
             |                                 
            
                13,490
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2011
             | 
            
                -0.40 / -1.11%
             |             
            
                35.00
             |           
            
                35.60
             |               
            
                35.00
             |                           
            
                35.60
             | 
            
                35.60
             |                     
            
                13.50
             |                                 
            
                2,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2011
             | 
            
                -0.30 / -0.83%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                36.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                13.65
             |                                 
            
                530
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2011
             | 
            
                0.00 / 0.00%
             |             
            
                36.30
             |           
            
                36.40
             |               
            
                36.30
             |                           
            
                36.30
             | 
            
                36.30
             |                     
            
                13.77
             |                                 
            
                35,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2011
             | 
            
                0.00 / 0.00%
             |             
            
                35.00
             |           
            
                36.30
             |               
            
                35.00
             |                           
            
                36.30
             | 
            
                36.30
             |                     
            
                13.77
             |                                 
            
                9,920
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2011
             | 
            
                -0.10 / -0.27%
             |             
            
                36.30
             |           
            
                36.50
             |               
            
                36.30
             |                           
            
                36.30
             | 
            
                36.30
             |                     
            
                13.77
             |                                 
            
                11,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2011
             | 
            
                -0.10 / -0.27%
             |             
            
                36.30
             |           
            
                36.40
             |               
            
                36.30
             |                           
            
                36.40
             | 
            
                36.40
             |                     
            
                13.81
             |                                 
            
                3,410
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2011
             | 
            
                -0.20 / -0.54%
             |             
            
                35.10
             |           
            
                36.50
             |               
            
                35.10
             |                           
            
                36.50
             | 
            
                36.50
             |                     
            
                13.84
             |                                 
            
                5,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2011
             | 
            
                -0.30 / -0.81%
             |             
            
                35.20
             |           
            
                36.70
             |               
            
                35.20
             |                           
            
                36.70
             | 
            
                36.70
             |                     
            
                13.92
             |                                 
            
                9,470
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2011
             | 
            
                -0.90 / -2.37%
             |             
            
                37.50
             |           
            
                37.50
             |               
            
                37.00
             |                           
            
                37.00
             | 
            
                37.00
             |                     
            
                14.03
             |                                 
            
                2,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2011
             | 
            
                0.00 / 0.00%
             |             
            
                37.90
             |           
            
                37.90
             |               
            
                37.90
             |                           
            
                37.90
             | 
            
                37.90
             |                     
            
                14.37
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2011
             | 
            
                +0.30 / +0.80%
             |             
            
                37.80
             |           
            
                37.90
             |               
            
                37.80
             |                           
            
                37.90
             | 
            
                37.90
             |                     
            
                14.37
             |                                 
            
                15,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2011
             | 
            
                0.00 / 0.00%
             |             
            
                37.60
             |           
            
                37.60
             |               
            
                37.60
             |                           
            
                37.60
             | 
            
                37.60
             |                     
            
                14.26
             |                                 
            
                16,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2011
             | 
            
                -0.10 / -0.27%
             |             
            
                36.00
             |           
            
                38.30
             |               
            
                36.00
             |                           
            
                37.60
             | 
            
                37.60
             |                     
            
                14.26
             |                                 
            
                33,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2011
             | 
            
                0.00 / 0.00%
             |             
            
                37.70
             |           
            
                37.70
             |               
            
                37.70
             |                           
            
                37.70
             | 
            
                37.70
             |                     
            
                14.30
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2011
             | 
            
                0.00 / 0.00%
             |             
            
                37.00
             |           
            
                37.80
             |               
            
                36.00
             |                           
            
                37.70
             | 
            
                37.70
             |                     
            
                14.30
             |                                 
            
                5,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2011
             | 
            
                -0.60 / -1.57%
             |             
            
                37.00
             |           
            
                37.70
             |               
            
                37.00
             |                           
            
                37.70
             | 
            
                37.70
             |                     
            
                14.30
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2011
             | 
            
                0.00 / 0.00%
             |             
            
                38.30
             |           
            
                38.30
             |               
            
                38.30
             |                           
            
                38.30
             | 
            
                38.30
             |                     
            
                14.53
             |                                 
            
                1,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2011
             | 
            
                +0.60 / +1.59%
             |             
            
                36.20
             |           
            
                38.30
             |               
            
                36.20
             |                           
            
                38.30
             | 
            
                38.30
             |                     
            
                14.53
             |                                 
            
                5,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2011
             | 
            
                -0.20 / -0.53%
             |             
            
                37.90
             |           
            
                37.90
             |               
            
                37.50
             |                           
            
                37.70
             | 
            
                37.70
             |                     
            
                14.30
             |                                 
            
                13,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2011
             | 
            
                -1.90 / -4.77%
             |             
            
                37.90
             |           
            
                37.90
             |               
            
                37.90
             |                           
            
                37.90
             | 
            
                37.90
             |                     
            
                14.37
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2011
             | 
            
                +0.80 / +2.05%
             |             
            
                38.00
             |           
            
                39.80
             |               
            
                38.00
             |                           
            
                39.80
             | 
            
                39.80
             |                     
            
                15.10
             |                                 
            
                5,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2011
             | 
            
                +0.50 / +1.30%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                39.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                14.79
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2011
             | 
            
                +1.10 / +2.94%
             |             
            
                38.00
             |           
            
                38.50
             |               
            
                38.00
             |                           
            
                38.50
             | 
            
                38.50
             |                     
            
                14.60
             |                                 
            
                12,000
             |  
            
                 
             |                                                              
             
    
         
    
    
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