| 
                 
                    Closing price on 8/22/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    26.40 | 
                 
                
                    | High | 
                    27.40 | 
                 
                
                    | Low | 
                    26.10 | 
                     
                
                    | Volume | 
                    82,300 | 
                                 
                
                    | Split-adjusted Price | 
                    6.59 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
LAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/22/2012
             | 
            
                +0.70 / +2.64%
             |             
            
                26.40
             |           
            
                27.40
             |               
            
                26.10
             |                           
            
                27.20
             | 
            
                27.05
             |                     
            
                6.59
             |                                 
            
                82,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2012
             | 
            
                -1.80 / -6.36%
             |             
            
                28.30
             |           
            
                28.30
             |               
            
                26.40
             |                           
            
                26.50
             | 
            
                26.64
             |                     
            
                6.42
             |                                 
            
                377,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2012
             | 
            
                +0.50 / +1.80%
             |             
            
                28.00
             |           
            
                28.50
             |               
            
                27.90
             |                           
            
                28.30
             | 
            
                28.26
             |                     
            
                6.86
             |                                 
            
                94,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2012
             | 
            
                +0.30 / +1.09%
             |             
            
                27.50
             |           
            
                27.90
             |               
            
                27.50
             |                           
            
                27.80
             | 
            
                27.82
             |                     
            
                6.73
             |                                 
            
                41,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2012
             | 
            
                0.00 / 0.00%
             |             
            
                27.50
             |           
            
                27.50
             |               
            
                27.50
             |                           
            
                27.50
             | 
            
                27.50
             |                     
            
                6.66
             |                                 
            
                46,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2012
             | 
            
                0.00 / 0.00%
             |             
            
                27.10
             |           
            
                27.50
             |               
            
                27.10
             |                           
            
                27.50
             | 
            
                27.21
             |                     
            
                6.66
             |                                 
            
                21,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2012
             | 
            
                +0.20 / +0.73%
             |             
            
                27.30
             |           
            
                27.50
             |               
            
                27.00
             |                           
            
                27.50
             | 
            
                27.17
             |                     
            
                6.66
             |                                 
            
                31,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2012
             | 
            
                -0.40 / -1.44%
             |             
            
                27.30
             |           
            
                27.30
             |               
            
                26.90
             |                           
            
                27.30
             | 
            
                27.15
             |                     
            
                6.61
             |                                 
            
                40,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2012
             | 
            
                -0.10 / -0.36%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                27.40
             |                           
            
                27.70
             | 
            
                27.68
             |                     
            
                6.71
             |                                 
            
                21,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2012
             | 
            
                +0.20 / +0.72%
             |             
            
                28.20
             |           
            
                28.20
             |               
            
                27.60
             |                           
            
                27.80
             | 
            
                27.83
             |                     
            
                6.73
             |                                 
            
                125,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/8/2012
             | 
            
                +0.30 / +1.10%
             |             
            
                27.40
             |           
            
                27.60
             |               
            
                27.30
             |                           
            
                27.60
             | 
            
                27.47
             |                     
            
                6.69
             |                                 
            
                48,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2012
             | 
            
                0.00 / 0.00%
             |             
            
                27.30
             |           
            
                27.60
             |               
            
                27.00
             |                           
            
                27.30
             | 
            
                27.28
             |                     
            
                6.61
             |                                 
            
                115,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2012
             | 
            
                +0.80 / +3.02%
             |             
            
                27.00
             |           
            
                27.70
             |               
            
                26.70
             |                           
            
                27.30
             | 
            
                27.38
             |                     
            
                6.61
             |                                 
            
                111,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2012
             | 
            
                +0.10 / +0.38%
             |             
            
                26.50
             |           
            
                26.70
             |               
            
                26.10
             |                           
            
                26.50
             | 
            
                26.51
             |                     
            
                6.42
             |                                 
            
                26,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2012
             | 
            
                0.00 / 0.00%
             |             
            
                26.30
             |           
            
                26.60
             |               
            
                26.30
             |                           
            
                26.40
             | 
            
                26.38
             |                     
            
                6.39
             |                                 
            
                28,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2012
             | 
            
                -0.10 / -0.38%
             |             
            
                26.10
             |           
            
                26.40
             |               
            
                25.80
             |                           
            
                26.40
             | 
            
                25.99
             |                     
            
                6.39
             |                                 
            
                51,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2012
             | 
            
                +0.30 / +1.15%
             |             
            
                26.70
             |           
            
                27.00
             |               
            
                26.20
             |                           
            
                26.50
             | 
            
                26.40
             |                     
            
                6.42
             |                                 
            
                46,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2012
             | 
            
                -0.50 / -1.87%
             |             
            
                26.20
             |           
            
                26.60
             |               
            
                25.80
             |                           
            
                26.20
             | 
            
                26.05
             |                     
            
                6.35
             |                                 
            
                88,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2012
             | 
            
                -0.20 / -0.74%
             |             
            
                26.90
             |           
            
                27.00
             |               
            
                26.20
             |                           
            
                26.70
             | 
            
                26.66
             |                     
            
                6.47
             |                                 
            
                58,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2012
             | 
            
                -0.10 / -0.37%
             |             
            
                27.00
             |           
            
                27.70
             |               
            
                26.60
             |                           
            
                26.90
             | 
            
                27.01
             |                     
            
                6.52
             |                                 
            
                63,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2012
             | 
            
                -0.20 / -0.74%
             |             
            
                27.20
             |           
            
                27.30
             |               
            
                26.60
             |                           
            
                27.00
             | 
            
                26.89
             |                     
            
                6.54
             |                                 
            
                77,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2012
             | 
            
                -1.00 / -3.55%
             |             
            
                28.00
             |           
            
                28.00
             |               
            
                26.60
             |                           
            
                27.20
             | 
            
                27.09
             |                     
            
                6.59
             |                                 
            
                115,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2012
             | 
            
                +0.40 / +1.44%
             |             
            
                27.80
             |           
            
                29.30
             |               
            
                27.80
             |                           
            
                28.20
             | 
            
                28.43
             |                     
            
                6.83
             |                                 
            
                256,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2012
             | 
            
                -0.40 / -1.42%
             |             
            
                28.50
             |           
            
                28.70
             |               
            
                27.50
             |                           
            
                27.80
             | 
            
                28.09
             |                     
            
                6.73
             |                                 
            
                196,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2012
             | 
            
                +1.80 / +6.82%
             |             
            
                26.40
             |           
            
                28.20
             |               
            
                26.40
             |                           
            
                28.20
             | 
            
                27.14
             |                     
            
                6.83
             |                                 
            
                265,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2012
             | 
            
                +0.80 / +3.13%
             |             
            
                26.00
             |           
            
                26.60
             |               
            
                25.20
             |                           
            
                26.40
             | 
            
                26.01
             |                     
            
                6.39
             |                                 
            
                178,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2012
             | 
            
                +1.00 / +4.07%
             |             
            
                24.60
             |           
            
                25.70
             |               
            
                24.60
             |                           
            
                25.60
             | 
            
                25.16
             |                     
            
                6.20
             |                                 
            
                127,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2012
             | 
            
                -0.20 / -0.81%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.64
             |                     
            
                5.96
             |                                 
            
                25,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2012
             | 
            
                +0.50 / +2.06%
             |             
            
                23.90
             |           
            
                25.00
             |               
            
                23.90
             |                           
            
                24.80
             | 
            
                24.78
             |                     
            
                6.01
             |                                 
            
                42,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2012
             | 
            
                +0.30 / +1.25%
             |             
            
                24.00
             |           
            
                24.30
             |               
            
                24.00
             |                           
            
                24.30
             | 
            
                24.07
             |                     
            
                5.89
             |                                 
            
                15,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |