| 
                 
                    Closing price on 12/2/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    47.60 | 
                 
                
                    | High | 
                    50.50 | 
                 
                
                    | Low | 
                    47.60 | 
                     
                
                    | Volume | 
                    6,400 | 
                                 
                
                    | Split-adjusted Price | 
                    16.75 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/2/2015
             | 
            
                +0.60 / +1.21%
             |             
            
                47.60
             |           
            
                50.50
             |               
            
                47.60
             |                           
            
                50.00
             | 
            
                48.19
             |                     
            
                16.75
             |                                 
            
                6,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2015
             | 
            
                +0.50 / +1.02%
             |             
            
                44.30
             |           
            
                50.90
             |               
            
                44.20
             |                           
            
                49.40
             | 
            
                45.44
             |                     
            
                16.55
             |                                 
            
                51,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2015
             | 
            
                -2.10 / -4.12%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                48.70
             |                           
            
                48.90
             | 
            
                51.00
             |                     
            
                16.38
             |                                 
            
                33,150
             |            
            
                 
             |                                       
         
    
        
            | 
                11/27/2015
             | 
            
                -2.50 / -4.67%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                50.20
             |                           
            
                51.00
             | 
            
                53.50
             |                     
            
                17.09
             |                                 
            
                23,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2015
             | 
            
                -1.30 / -2.37%
             |             
            
                55.50
             |           
            
                55.90
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                54.82
             |                     
            
                17.92
             |                                 
            
                22,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2015
             | 
            
                -1.00 / -1.79%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                53.50
             |                           
            
                54.80
             | 
            
                54.31
             |                     
            
                18.36
             |                                 
            
                20,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2015
             | 
            
                -2.10 / -3.63%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                54.00
             |                           
            
                55.80
             | 
            
                54.88
             |                     
            
                18.70
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2015
             | 
            
                +1.60 / +2.84%
             |             
            
                56.20
             |           
            
                59.00
             |               
            
                56.00
             |                           
            
                57.90
             | 
            
                57.38
             |                     
            
                19.40
             |                                 
            
                21,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/20/2015
             | 
            
                +3.80 / +7.24%
             |             
            
                52.50
             |           
            
                57.70
             |               
            
                52.50
             |                           
            
                56.30
             | 
            
                56.25
             |                     
            
                18.86
             |                                 
            
                30,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2015
             | 
            
                +1.70 / +3.35%
             |             
            
                50.00
             |           
            
                53.50
             |               
            
                50.00
             |                           
            
                52.50
             | 
            
                51.06
             |                     
            
                17.59
             |                                 
            
                29,942
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2015
             | 
            
                -0.70 / -1.36%
             |             
            
                50.00
             |           
            
                50.80
             |               
            
                49.60
             |                           
            
                50.80
             | 
            
                50.01
             |                     
            
                17.02
             |                                 
            
                12,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2015
             | 
            
                -0.50 / -0.96%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                50.00
             |                           
            
                51.50
             | 
            
                50.90
             |                     
            
                17.25
             |                                 
            
                6,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2015
             | 
            
                +0.50 / +0.97%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                51.20
             |                           
            
                52.00
             | 
            
                51.99
             |                     
            
                17.42
             |                                 
            
                23,617
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2015
             | 
            
                +5.00 / +9.90%
             |             
            
                50.80
             |           
            
                55.50
             |               
            
                49.00
             |                           
            
                55.50
             | 
            
                50.19
             |                     
            
                17.25
             |                                 
            
                67,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2015
             | 
            
                +0.50 / +1.00%
             |             
            
                50.40
             |           
            
                50.90
             |               
            
                49.50
             |                           
            
                50.50
             | 
            
                50.02
             |                     
            
                15.70
             |                                 
            
                8,252
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2015
             | 
            
                +0.30 / +0.60%
             |             
            
                49.50
             |           
            
                50.50
             |               
            
                49.50
             |                           
            
                50.00
             | 
            
                50.04
             |                     
            
                15.54
             |                                 
            
                16,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2015
             | 
            
                +0.70 / +1.43%
             |             
            
                49.00
             |           
            
                49.80
             |               
            
                48.80
             |                           
            
                49.70
             | 
            
                49.47
             |                     
            
                15.45
             |                                 
            
                12,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2015
             | 
            
                -1.40 / -2.78%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.00
             |                           
            
                49.00
             | 
            
                49.86
             |                     
            
                15.23
             |                                 
            
                18,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2015
             | 
            
                -0.60 / -1.18%
             |             
            
                49.10
             |           
            
                50.90
             |               
            
                48.70
             |                           
            
                50.40
             | 
            
                49.37
             |                     
            
                15.67
             |                                 
            
                16,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2015
             | 
            
                +0.10 / +0.20%
             |             
            
                50.90
             |           
            
                51.40
             |               
            
                50.90
             |                           
            
                51.00
             | 
            
                50.99
             |                     
            
                15.86
             |                                 
            
                11,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2015
             | 
            
                +0.10 / +0.20%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                50.90
             |                           
            
                50.90
             | 
            
                51.58
             |                     
            
                15.82
             |                                 
            
                12,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2015
             | 
            
                +2.00 / +4.10%
             |             
            
                48.50
             |           
            
                51.00
             |               
            
                48.00
             |                           
            
                50.80
             | 
            
                49.05
             |                     
            
                15.79
             |                                 
            
                30,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2015
             | 
            
                -2.70 / -5.24%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                48.00
             |                           
            
                48.80
             | 
            
                49.26
             |                     
            
                15.17
             |                                 
            
                42,356
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2015
             | 
            
                -1.60 / -3.01%
             |             
            
                52.90
             |           
            
                53.30
             |               
            
                50.00
             |                           
            
                51.50
             | 
            
                52.10
             |                     
            
                16.01
             |                                 
            
                32,884
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2015
             | 
            
                +0.20 / +0.38%
             |             
            
                53.00
             |           
            
                54.60
             |               
            
                52.90
             |                           
            
                53.10
             | 
            
                53.44
             |                     
            
                16.51
             |                                 
            
                15,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2015
             | 
            
                +4.80 / +9.98%
             |             
            
                52.50
             |           
            
                52.90
             |               
            
                51.00
             |                           
            
                52.90
             | 
            
                52.46
             |                     
            
                16.45
             |                                 
            
                56,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2015
             | 
            
                +4.30 / +9.82%
             |             
            
                43.80
             |           
            
                48.10
             |               
            
                43.00
             |                           
            
                48.10
             | 
            
                46.94
             |                     
            
                14.95
             |                                 
            
                49,650
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2015
             | 
            
                +0.20 / +0.46%
             |             
            
                43.50
             |           
            
                43.90
             |               
            
                43.50
             |                           
            
                43.80
             | 
            
                43.61
             |                     
            
                13.62
             |                                 
            
                9,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2015
             | 
            
                0.00 / 0.00%
             |             
            
                43.00
             |           
            
                43.60
             |               
            
                42.00
             |                           
            
                43.60
             | 
            
                43.29
             |                     
            
                13.56
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2015
             | 
            
                +0.60 / +1.40%
             |             
            
                43.30
             |           
            
                43.60
             |               
            
                41.00
             |                           
            
                43.60
             | 
            
                42.71
             |                     
            
                13.56
             |                                 
            
                9,700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |