| 
                 
                    Closing price on 5/14/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    38.50 | 
                 
                
                    | High | 
                    38.50 | 
                 
                
                    | Low | 
                    38.00 | 
                     
                
                    | Volume | 
                    110,600 | 
                                 
                
                    | Split-adjusted Price | 
                    9.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
LAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/14/2013
             | 
            
                -0.40 / -1.04%
             |             
            
                38.50
             |           
            
                38.50
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.15
             |                     
            
                9.20
             |                                 
            
                110,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2013
             | 
            
                +0.60 / +1.59%
             |             
            
                38.00
             |           
            
                38.50
             |               
            
                37.90
             |                           
            
                38.40
             | 
            
                38.17
             |                     
            
                9.30
             |                                 
            
                90,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2013
             | 
            
                +0.20 / +0.53%
             |             
            
                37.60
             |           
            
                38.30
             |               
            
                37.60
             |                           
            
                37.80
             | 
            
                38.00
             |                     
            
                9.16
             |                                 
            
                71,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2013
             | 
            
                0.00 / 0.00%
             |             
            
                37.60
             |           
            
                37.90
             |               
            
                37.50
             |                           
            
                37.60
             | 
            
                37.63
             |                     
            
                9.11
             |                                 
            
                43,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                37.40
             |           
            
                37.60
             |               
            
                37.10
             |                           
            
                37.60
             | 
            
                37.29
             |                     
            
                9.11
             |                                 
            
                27,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2013
             | 
            
                -0.40 / -1.05%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                37.50
             |                           
            
                37.60
             | 
            
                37.71
             |                     
            
                9.11
             |                                 
            
                56,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2013
             | 
            
                +0.60 / +1.60%
             |             
            
                37.50
             |           
            
                38.10
             |               
            
                37.40
             |                           
            
                38.00
             | 
            
                37.79
             |                     
            
                9.20
             |                                 
            
                90,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2013
             | 
            
                +0.10 / +0.27%
             |             
            
                37.50
             |           
            
                37.50
             |               
            
                37.20
             |                           
            
                37.40
             | 
            
                37.26
             |                     
            
                9.06
             |                                 
            
                56,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2013
             | 
            
                -0.30 / -0.80%
             |             
            
                37.70
             |           
            
                37.70
             |               
            
                37.00
             |                           
            
                37.30
             | 
            
                37.24
             |                     
            
                9.04
             |                                 
            
                63,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2013
             | 
            
                -0.30 / -0.79%
             |             
            
                37.80
             |           
            
                37.80
             |               
            
                37.50
             |                           
            
                37.60
             | 
            
                37.64
             |                     
            
                9.11
             |                                 
            
                123,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                38.00
             |           
            
                38.00
             |               
            
                37.30
             |                           
            
                37.90
             | 
            
                37.67
             |                     
            
                9.18
             |                                 
            
                185,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                38.00
             |           
            
                38.60
             |               
            
                37.60
             |                           
            
                37.90
             | 
            
                38.11
             |                     
            
                9.18
             |                                 
            
                148,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2013
             | 
            
                +0.60 / +1.61%
             |             
            
                37.50
             |           
            
                38.00
             |               
            
                37.40
             |                           
            
                37.90
             | 
            
                37.58
             |                     
            
                9.18
             |                                 
            
                46,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2013
             | 
            
                +0.30 / +0.81%
             |             
            
                37.40
             |           
            
                38.30
             |               
            
                37.20
             |                           
            
                37.30
             | 
            
                37.57
             |                     
            
                9.04
             |                                 
            
                77,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2013
             | 
            
                -1.00 / -2.63%
             |             
            
                37.60
             |           
            
                37.70
             |               
            
                37.00
             |                           
            
                37.00
             | 
            
                37.17
             |                     
            
                8.96
             |                                 
            
                114,160
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2013
             | 
            
                -0.20 / -0.52%
             |             
            
                38.50
             |           
            
                38.70
             |               
            
                37.80
             |                           
            
                38.00
             | 
            
                37.91
             |                     
            
                9.20
             |                                 
            
                16,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2013
             | 
            
                +0.70 / +1.87%
             |             
            
                37.80
             |           
            
                38.20
             |               
            
                37.50
             |                           
            
                38.20
             | 
            
                37.76
             |                     
            
                9.25
             |                                 
            
                201,720
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2013
             | 
            
                -0.50 / -1.32%
             |             
            
                37.80
             |           
            
                38.30
             |               
            
                37.50
             |                           
            
                37.50
             | 
            
                37.75
             |                     
            
                9.08
             |                                 
            
                191,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2013
             | 
            
                -0.50 / -1.30%
             |             
            
                38.80
             |           
            
                38.80
             |               
            
                37.40
             |                           
            
                38.00
             | 
            
                37.85
             |                     
            
                9.20
             |                                 
            
                180,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2013
             | 
            
                +1.00 / +2.67%
             |             
            
                37.90
             |           
            
                38.60
             |               
            
                37.30
             |                           
            
                38.50
             | 
            
                37.91
             |                     
            
                9.33
             |                                 
            
                103,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2013
             | 
            
                -0.90 / -2.34%
             |             
            
                38.30
             |           
            
                38.40
             |               
            
                37.20
             |                           
            
                37.50
             | 
            
                37.99
             |                     
            
                9.08
             |                                 
            
                166,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2013
             | 
            
                -0.20 / -0.52%
             |             
            
                38.30
             |           
            
                38.90
             |               
            
                38.30
             |                           
            
                38.40
             | 
            
                38.55
             |                     
            
                9.30
             |                                 
            
                110,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2013
             | 
            
                +0.40 / +1.05%
             |             
            
                38.40
             |           
            
                38.90
             |               
            
                38.00
             |                           
            
                38.60
             | 
            
                38.41
             |                     
            
                9.35
             |                                 
            
                138,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2013
             | 
            
                -0.80 / -2.05%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                38.20
             |                           
            
                38.20
             | 
            
                38.55
             |                     
            
                9.25
             |                                 
            
                101,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2013
             | 
            
                +0.80 / +2.09%
             |             
            
                38.20
             |           
            
                39.70
             |               
            
                38.20
             |                           
            
                39.00
             | 
            
                39.21
             |                     
            
                9.45
             |                                 
            
                259,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2013
             | 
            
                +1.10 / +2.96%
             |             
            
                37.10
             |           
            
                38.20
             |               
            
                37.10
             |                           
            
                38.20
             | 
            
                37.77
             |                     
            
                9.25
             |                                 
            
                364,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2013
             | 
            
                -0.10 / -0.27%
             |             
            
                37.10
             |           
            
                38.00
             |               
            
                37.00
             |                           
            
                37.10
             | 
            
                37.55
             |                     
            
                8.99
             |                                 
            
                232,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2013
             | 
            
                +1.00 / +2.76%
             |             
            
                36.00
             |           
            
                37.20
             |               
            
                36.00
             |                           
            
                37.20
             | 
            
                36.52
             |                     
            
                9.01
             |                                 
            
                266,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2013
             | 
            
                +0.20 / +0.56%
             |             
            
                35.70
             |           
            
                36.30
             |               
            
                35.20
             |                           
            
                36.20
             | 
            
                35.83
             |                     
            
                8.77
             |                                 
            
                117,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2013
             | 
            
                +1.00 / +2.86%
             |             
            
                34.90
             |           
            
                37.00
             |               
            
                34.70
             |                           
            
                36.00
             | 
            
                36.01
             |                     
            
                8.72
             |                                 
            
                210,840
             |  
            
                 
             |                                                              
             
    
         
    
    
 |