| 
                 
                    Closing price on 5/5/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    111.50 | 
                 
                
                    | High | 
                    111.50 | 
                 
                
                    | Low | 
                    104.00 | 
                     
                
                    | Volume | 
                    11,538 | 
                                 
                
                    | Split-adjusted Price | 
                    35.18 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/5/2016
             | 
            
                -6.40 / -5.75%
             |             
            
                111.50
             |           
            
                111.50
             |               
            
                104.00
             |                           
            
                105.00
             | 
            
                105.88
             |                     
            
                35.18
             |                                 
            
                11,538
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2016
             | 
            
                +1.50 / +1.36%
             |             
            
                112.00
             |           
            
                113.00
             |               
            
                109.90
             |                           
            
                111.40
             | 
            
                110.53
             |                     
            
                37.32
             |                                 
            
                11,321
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2016
             | 
            
                +9.60 / +9.57%
             |             
            
                100.00
             |           
            
                110.30
             |               
            
                100.00
             |                           
            
                109.90
             | 
            
                104.16
             |                     
            
                36.82
             |                                 
            
                14,802
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2016
             | 
            
                -5.70 / -5.38%
             |             
            
                106.00
             |           
            
                106.00
             |               
            
                99.10
             |                           
            
                100.30
             | 
            
                101.71
             |                     
            
                33.60
             |                                 
            
                25,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2016
             | 
            
                -2.00 / -1.85%
             |             
            
                108.10
             |           
            
                109.00
             |               
            
                101.10
             |                           
            
                106.00
             | 
            
                103.97
             |                     
            
                35.51
             |                                 
            
                21,452
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2016
             | 
            
                +7.60 / +7.57%
             |             
            
                105.00
             |           
            
                110.00
             |               
            
                102.50
             |                           
            
                108.00
             | 
            
                107.86
             |                     
            
                36.18
             |                                 
            
                30,357
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2016
             | 
            
                +9.10 / +9.97%
             |             
            
                100.00
             |           
            
                100.40
             |               
            
                97.00
             |                           
            
                100.40
             | 
            
                100.18
             |                     
            
                33.64
             |                                 
            
                67,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2016
             | 
            
                +8.30 / +10.00%
             |             
            
                88.80
             |           
            
                91.30
             |               
            
                88.80
             |                           
            
                91.30
             | 
            
                91.21
             |                     
            
                30.59
             |                                 
            
                6,296
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2016
             | 
            
                +7.00 / +9.21%
             |             
            
                76.00
             |           
            
                83.60
             |               
            
                76.00
             |                           
            
                83.00
             | 
            
                80.16
             |                     
            
                27.81
             |                                 
            
                23,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2016
             | 
            
                +1.00 / +1.33%
             |             
            
                74.50
             |           
            
                76.50
             |               
            
                74.00
             |                           
            
                76.00
             | 
            
                75.23
             |                     
            
                25.46
             |                                 
            
                24,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2016
             | 
            
                +0.70 / +0.94%
             |             
            
                74.30
             |           
            
                76.00
             |               
            
                74.30
             |                           
            
                75.00
             | 
            
                75.13
             |                     
            
                25.13
             |                                 
            
                29,026
             |            
            
                 
             |                                       
         
    
        
            | 
                4/15/2016
             | 
            
                +0.30 / +0.41%
             |             
            
                73.00
             |           
            
                75.00
             |               
            
                73.00
             |                           
            
                74.30
             | 
            
                74.26
             |                     
            
                24.89
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2016
             | 
            
                +1.50 / +2.07%
             |             
            
                72.70
             |           
            
                75.00
             |               
            
                72.70
             |                           
            
                74.00
             | 
            
                73.55
             |                     
            
                24.79
             |                                 
            
                24,604
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2016
             | 
            
                0.00 / 0.00%
             |             
            
                72.50
             |           
            
                73.00
             |               
            
                72.10
             |                           
            
                72.50
             | 
            
                72.60
             |                     
            
                24.29
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2016
             | 
            
                -0.70 / -0.96%
             |             
            
                71.00
             |           
            
                73.20
             |               
            
                71.00
             |                           
            
                72.50
             | 
            
                72.49
             |                     
            
                24.29
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2016
             | 
            
                -0.80 / -1.08%
             |             
            
                74.00
             |           
            
                74.00
             |               
            
                71.70
             |                           
            
                73.20
             | 
            
                72.98
             |                     
            
                24.53
             |                                 
            
                18,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2016
             | 
            
                +1.40 / +1.93%
             |             
            
                72.60
             |           
            
                74.90
             |               
            
                72.50
             |                           
            
                74.00
             | 
            
                73.69
             |                     
            
                24.79
             |                                 
            
                30,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2016
             | 
            
                +4.10 / +5.99%
             |             
            
                69.00
             |           
            
                74.00
             |               
            
                68.50
             |                           
            
                72.60
             | 
            
                70.89
             |                     
            
                24.32
             |                                 
            
                30,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2016
             | 
            
                +0.30 / +0.44%
             |             
            
                67.00
             |           
            
                68.50
             |               
            
                67.00
             |                           
            
                68.50
             | 
            
                67.06
             |                     
            
                22.95
             |                                 
            
                5,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2016
             | 
            
                +1.70 / +2.56%
             |             
            
                66.60
             |           
            
                68.70
             |               
            
                66.60
             |                           
            
                68.20
             | 
            
                67.53
             |                     
            
                22.85
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2016
             | 
            
                -0.20 / -0.30%
             |             
            
                66.00
             |           
            
                66.70
             |               
            
                65.60
             |                           
            
                66.50
             | 
            
                66.30
             |                     
            
                22.28
             |                                 
            
                14,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2016
             | 
            
                -1.80 / -2.63%
             |             
            
                68.40
             |           
            
                68.40
             |               
            
                66.00
             |                           
            
                66.70
             | 
            
                67.14
             |                     
            
                22.35
             |                                 
            
                9,780
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2016
             | 
            
                -1.50 / -2.14%
             |             
            
                69.90
             |           
            
                70.00
             |               
            
                68.50
             |                           
            
                68.50
             | 
            
                69.65
             |                     
            
                22.95
             |                                 
            
                18,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2016
             | 
            
                +1.00 / +1.45%
             |             
            
                68.50
             |           
            
                70.00
             |               
            
                67.70
             |                           
            
                70.00
             | 
            
                68.95
             |                     
            
                23.45
             |                                 
            
                10,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2016
             | 
            
                -0.80 / -1.15%
             |             
            
                70.00
             |           
            
                70.80
             |               
            
                69.00
             |                           
            
                69.00
             | 
            
                69.55
             |                     
            
                23.12
             |                                 
            
                14,558
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2016
             | 
            
                +4.60 / +7.06%
             |             
            
                64.00
             |           
            
                69.90
             |               
            
                63.50
             |                           
            
                69.80
             | 
            
                66.94
             |                     
            
                23.39
             |                                 
            
                33,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2016
             | 
            
                -1.70 / -2.54%
             |             
            
                66.50
             |           
            
                66.50
             |               
            
                64.50
             |                           
            
                65.20
             | 
            
                64.95
             |                     
            
                21.84
             |                                 
            
                12,200
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |