| 
                 
                    Closing price on 3/20/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    39.40 | 
                 
                
                    | High | 
                    39.40 | 
                 
                
                    | Low | 
                    38.00 | 
                     
                
                    | Volume | 
                    42,110 | 
                                 
                
                    | Split-adjusted Price | 
                    14.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
CTD Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/20/2012
             | 
            
                +0.70 / +1.85%
             |             
            
                39.40
             |           
            
                39.40
             |               
            
                38.00
             |                           
            
                38.50
             | 
            
                38.50
             |                     
            
                14.60
             |                                 
            
                42,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2012
             | 
            
                +1.80 / +5.00%
             |             
            
                37.80
             |           
            
                37.80
             |               
            
                36.00
             |                           
            
                37.80
             | 
            
                37.80
             |                     
            
                14.34
             |                                 
            
                64,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2012
             | 
            
                +1.70 / +4.96%
             |             
            
                36.00
             |           
            
                36.00
             |               
            
                36.00
             |                           
            
                36.00
             | 
            
                36.00
             |                     
            
                13.65
             |                                 
            
                14,150
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2012
             | 
            
                +1.60 / +4.89%
             |             
            
                34.30
             |           
            
                34.30
             |               
            
                34.30
             |                           
            
                34.30
             | 
            
                34.30
             |                     
            
                13.01
             |                                 
            
                10,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2012
             | 
            
                +1.50 / +4.81%
             |             
            
                32.50
             |           
            
                32.70
             |               
            
                32.40
             |                           
            
                32.70
             | 
            
                32.70
             |                     
            
                12.40
             |                                 
            
                37,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2012
             | 
            
                -0.20 / -0.64%
             |             
            
                31.40
             |           
            
                31.40
             |               
            
                31.20
             |                           
            
                31.20
             | 
            
                31.20
             |                     
            
                11.83
             |                                 
            
                9,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2012
             | 
            
                -0.60 / -1.88%
             |             
            
                32.60
             |           
            
                32.60
             |               
            
                31.40
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                11.91
             |                                 
            
                11,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2012
             | 
            
                -0.80 / -2.44%
             |             
            
                31.60
             |           
            
                32.50
             |               
            
                31.60
             |                           
            
                32.00
             | 
            
                32.00
             |                     
            
                12.14
             |                                 
            
                14,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2012
             | 
            
                +1.40 / +4.46%
             |             
            
                31.50
             |           
            
                32.80
             |               
            
                31.50
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                12.44
             |                                 
            
                2,670
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2012
             | 
            
                -0.20 / -0.63%
             |             
            
                31.10
             |           
            
                32.50
             |               
            
                31.10
             |                           
            
                31.40
             | 
            
                31.40
             |                     
            
                11.91
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2012
             | 
            
                -1.40 / -4.24%
             |             
            
                33.10
             |           
            
                33.10
             |               
            
                31.60
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                11.99
             |                                 
            
                10,840
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2012
             | 
            
                +1.50 / +4.76%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.90
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                12.52
             |                                 
            
                25,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2012
             | 
            
                +0.70 / +2.27%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                30.70
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                11.95
             |                                 
            
                160
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2012
             | 
            
                -0.70 / -2.22%
             |             
            
                32.10
             |           
            
                32.10
             |               
            
                30.80
             |                           
            
                30.80
             | 
            
                30.80
             |                     
            
                11.68
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2012
             | 
            
                +1.10 / +3.62%
             |             
            
                30.40
             |           
            
                31.50
             |               
            
                30.40
             |                           
            
                31.50
             | 
            
                31.50
             |                     
            
                11.95
             |                                 
            
                11,650
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2012
             | 
            
                -0.60 / -1.94%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                29.80
             |                           
            
                30.40
             | 
            
                30.40
             |                     
            
                11.53
             |                                 
            
                20,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2012
             | 
            
                +0.80 / +2.65%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.20
             |                           
            
                31.00
             | 
            
                31.00
             |                     
            
                11.76
             |                                 
            
                9,220
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2012
             | 
            
                -0.90 / -2.89%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.20
             |                           
            
                30.20
             | 
            
                30.20
             |                     
            
                11.45
             |                                 
            
                3,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2012
             | 
            
                +1.40 / +4.71%
             |             
            
                29.70
             |           
            
                31.10
             |               
            
                29.70
             |                           
            
                31.10
             | 
            
                31.10
             |                     
            
                11.80
             |                                 
            
                9,940
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2012
             | 
            
                +0.10 / +0.34%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                29.70
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                11.26
             |                                 
            
                130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2012
             | 
            
                +0.10 / +0.34%
             |             
            
                30.60
             |           
            
                30.60
             |               
            
                29.60
             |                           
            
                29.60
             | 
            
                29.60
             |                     
            
                11.23
             |                                 
            
                8,730
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2012
             | 
            
                +0.50 / +1.72%
             |             
            
                29.50
             |           
            
                30.20
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                11.19
             |                                 
            
                13,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2012
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                30.00
             |               
            
                28.90
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                11.00
             |                                 
            
                58,350
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                11.00
             |                                 
            
                12,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2012
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                11.00
             |                                 
            
                19,690
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2012
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                29.50
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                11.00
             |                                 
            
                10,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2012
             | 
            
                -0.50 / -1.69%
             |             
            
                29.90
             |           
            
                30.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                11.00
             |                                 
            
                13,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2012
             | 
            
                -1.00 / -3.28%
             |             
            
                29.50
             |           
            
                30.50
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                11.19
             |                                 
            
                24,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2012
             | 
            
                -0.10 / -0.33%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                29.70
             |                           
            
                30.50
             | 
            
                30.50
             |                     
            
                11.57
             |                                 
            
                5,480
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2012
             | 
            
                +1.40 / +4.79%
             |             
            
                29.50
             |           
            
                30.60
             |               
            
                29.20
             |                           
            
                30.60
             | 
            
                30.60
             |                     
            
                11.61
             |                                 
            
                35,780
             |  
            
                 
             |                                                              
             
    
         
    
    
 |