| 
                 
                    Closing price on 3/24/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    64.00 | 
                 
                
                    | High | 
                    67.00 | 
                 
                
                    | Low | 
                    64.00 | 
                     
                
                    | Volume | 
                    13,766 | 
                                 
                
                    | Split-adjusted Price | 
                    22.41 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/24/2016
             | 
            
                +2.00 / +3.08%
             |             
            
                64.00
             |           
            
                67.00
             |               
            
                64.00
             |                           
            
                66.90
             | 
            
                66.26
             |                     
            
                22.41
             |                                 
            
                13,766
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2016
             | 
            
                +2.80 / +4.51%
             |             
            
                62.00
             |           
            
                66.60
             |               
            
                61.80
             |                           
            
                64.90
             | 
            
                64.27
             |                     
            
                21.74
             |                                 
            
                20,868
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2016
             | 
            
                -0.90 / -1.43%
             |             
            
                61.40
             |           
            
                62.50
             |               
            
                61.20
             |                           
            
                62.10
             | 
            
                61.55
             |                     
            
                20.81
             |                                 
            
                11,338
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2016
             | 
            
                0.00 / 0.00%
             |             
            
                63.00
             |           
            
                63.50
             |               
            
                62.00
             |                           
            
                63.00
             | 
            
                62.61
             |                     
            
                21.11
             |                                 
            
                8,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2016
             | 
            
                +2.20 / +3.62%
             |             
            
                61.00
             |           
            
                64.50
             |               
            
                61.00
             |                           
            
                63.00
             | 
            
                62.96
             |                     
            
                21.11
             |                                 
            
                18,908
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2016
             | 
            
                +4.30 / +7.61%
             |             
            
                58.00
             |           
            
                61.00
             |               
            
                57.50
             |                           
            
                60.80
             | 
            
                58.94
             |                     
            
                20.37
             |                                 
            
                11,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2016
             | 
            
                +0.60 / +1.07%
             |             
            
                55.00
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                56.50
             | 
            
                55.92
             |                     
            
                18.93
             |                                 
            
                10,372
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2016
             | 
            
                -0.10 / -0.18%
             |             
            
                55.50
             |           
            
                55.90
             |               
            
                54.40
             |                           
            
                55.90
             | 
            
                55.20
             |                     
            
                18.73
             |                                 
            
                10,364
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2016
             | 
            
                +1.00 / +1.82%
             |             
            
                55.20
             |           
            
                56.00
             |               
            
                55.20
             |                           
            
                56.00
             | 
            
                55.56
             |                     
            
                18.76
             |                                 
            
                17,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2016
             | 
            
                -1.80 / -3.17%
             |             
            
                56.80
             |           
            
                56.90
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                56.75
             |                     
            
                18.43
             |                                 
            
                8,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2016
             | 
            
                +2.50 / +4.60%
             |             
            
                54.60
             |           
            
                57.00
             |               
            
                54.60
             |                           
            
                56.80
             | 
            
                55.75
             |                     
            
                19.03
             |                                 
            
                16,116
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2016
             | 
            
                -0.30 / -0.55%
             |             
            
                53.30
             |           
            
                55.00
             |               
            
                53.30
             |                           
            
                54.30
             | 
            
                54.60
             |                     
            
                18.19
             |                                 
            
                14,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2016
             | 
            
                -0.80 / -1.44%
             |             
            
                55.40
             |           
            
                55.40
             |               
            
                54.50
             |                           
            
                54.60
             | 
            
                54.74
             |                     
            
                18.29
             |                                 
            
                4,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2016
             | 
            
                -0.60 / -1.07%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                55.00
             |                           
            
                55.40
             | 
            
                55.71
             |                     
            
                18.56
             |                                 
            
                2,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2016
             | 
            
                +1.10 / +2.00%
             |             
            
                54.90
             |           
            
                56.50
             |               
            
                54.90
             |                           
            
                56.00
             | 
            
                55.80
             |                     
            
                18.76
             |                                 
            
                23,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2016
             | 
            
                +2.50 / +4.77%
             |             
            
                53.00
             |           
            
                55.90
             |               
            
                53.00
             |                           
            
                54.90
             | 
            
                54.58
             |                     
            
                18.39
             |                                 
            
                19,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2016
             | 
            
                -0.20 / -0.38%
             |             
            
                52.00
             |           
            
                53.00
             |               
            
                52.00
             |                           
            
                52.40
             | 
            
                52.36
             |                     
            
                17.56
             |                                 
            
                9,410
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2016
             | 
            
                -0.30 / -0.57%
             |             
            
                51.50
             |           
            
                52.80
             |               
            
                51.50
             |                           
            
                52.60
             | 
            
                52.23
             |                     
            
                17.62
             |                                 
            
                20,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2016
             | 
            
                -0.50 / -0.94%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                52.00
             |                           
            
                52.90
             | 
            
                52.58
             |                     
            
                17.72
             |                                 
            
                16,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2016
             | 
            
                +3.60 / +7.23%
             |             
            
                51.40
             |           
            
                54.00
             |               
            
                51.40
             |                           
            
                53.40
             | 
            
                52.83
             |                     
            
                17.89
             |                                 
            
                29,322
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2016
             | 
            
                +1.10 / +2.26%
             |             
            
                49.40
             |           
            
                52.00
             |               
            
                49.40
             |                           
            
                49.80
             | 
            
                50.15
             |                     
            
                16.69
             |                                 
            
                49,150
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2016
             | 
            
                -0.30 / -0.61%
             |             
            
                48.90
             |           
            
                48.90
             |               
            
                48.10
             |                           
            
                48.70
             | 
            
                48.44
             |                     
            
                16.32
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2016
             | 
            
                +0.50 / +1.03%
             |             
            
                48.50
             |           
            
                49.50
             |               
            
                48.50
             |                           
            
                49.00
             | 
            
                48.74
             |                     
            
                16.42
             |                                 
            
                10,878
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2016
             | 
            
                +0.10 / +0.21%
             |             
            
                48.40
             |           
            
                48.50
             |               
            
                47.80
             |                           
            
                48.50
             | 
            
                48.14
             |                     
            
                16.25
             |                                 
            
                5,914
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2016
             | 
            
                +0.20 / +0.41%
             |             
            
                48.50
             |           
            
                48.80
             |               
            
                48.10
             |                           
            
                48.40
             | 
            
                48.31
             |                     
            
                16.22
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2016
             | 
            
                -1.80 / -3.60%
             |             
            
                50.40
             |           
            
                50.40
             |               
            
                47.00
             |                           
            
                48.20
             | 
            
                48.91
             |                     
            
                16.15
             |                                 
            
                5,178
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2016
             | 
            
                -0.30 / -0.60%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                50.00
             |                           
            
                50.00
             | 
            
                50.45
             |                     
            
                16.75
             |                                 
            
                8,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2016
             | 
            
                +3.30 / +7.02%
             |             
            
                47.70
             |           
            
                51.50
             |               
            
                47.70
             |                           
            
                50.30
             | 
            
                50.14
             |                     
            
                16.85
             |                                 
            
                25,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/15/2016
             | 
            
                +0.50 / +1.08%
             |             
            
                47.00
             |           
            
                47.00
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                15.75
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2016
             | 
            
                +0.60 / +1.31%
             |             
            
                45.90
             |           
            
                46.50
             |               
            
                45.90
             |                           
            
                46.50
             | 
            
                46.03
             |                     
            
                15.58
             |                                 
            
                4,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |