| 
                 
                    Closing price on 10/27/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    43.80 | 
                 
                
                    | High | 
                    48.10 | 
                 
                
                    | Low | 
                    43.00 | 
                     
                
                    | Volume | 
                    49,650 | 
                                 
                
                    | Split-adjusted Price | 
                    14.95 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2015
             | 
            
                +1.00 / +2.38%
             |             
            
                42.00
             |           
            
                43.00
             |               
            
                41.60
             |                           
            
                43.00
             | 
            
                41.97
             |                     
            
                13.37
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2015
             | 
            
                -1.20 / -2.78%
             |             
            
                43.00
             |           
            
                43.90
             |               
            
                41.00
             |                           
            
                42.00
             | 
            
                42.53
             |                     
            
                13.06
             |                                 
            
                5,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2015
             | 
            
                +2.00 / +4.85%
             |             
            
                41.20
             |           
            
                43.20
             |               
            
                41.20
             |                           
            
                43.20
             | 
            
                42.49
             |                     
            
                13.43
             |                                 
            
                10,450
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2015
             | 
            
                +0.20 / +0.49%
             |             
            
                41.00
             |           
            
                41.60
             |               
            
                39.50
             |                           
            
                41.20
             | 
            
                40.50
             |                     
            
                12.81
             |                                 
            
                26,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2015
             | 
            
                -0.70 / -1.68%
             |             
            
                41.70
             |           
            
                41.70
             |               
            
                40.00
             |                           
            
                41.00
             | 
            
                40.59
             |                     
            
                12.75
             |                                 
            
                19,309
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2015
             | 
            
                +1.90 / +4.77%
             |             
            
                39.80
             |           
            
                41.80
             |               
            
                39.80
             |                           
            
                41.70
             | 
            
                40.75
             |                     
            
                12.96
             |                                 
            
                14,625
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2015
             | 
            
                +1.80 / +4.74%
             |             
            
                38.00
             |           
            
                39.80
             |               
            
                38.00
             |                           
            
                39.80
             | 
            
                38.00
             |                     
            
                12.37
             |                                 
            
                22,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2015
             | 
            
                -0.10 / -0.26%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                37.70
             |                           
            
                38.00
             | 
            
                37.86
             |                     
            
                11.81
             |                                 
            
                13,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2015
             | 
            
                0.00 / 0.00%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                37.90
             |                           
            
                38.10
             | 
            
                38.01
             |                     
            
                11.85
             |                                 
            
                16,426
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2015
             | 
            
                0.00 / 0.00%
             |             
            
                38.10
             |           
            
                38.20
             |               
            
                37.70
             |                           
            
                38.10
             | 
            
                38.05
             |                     
            
                11.85
             |                                 
            
                24,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2015
             | 
            
                -0.90 / -2.31%
             |             
            
                38.00
             |           
            
                38.10
             |               
            
                37.90
             |                           
            
                38.10
             | 
            
                38.04
             |                     
            
                11.85
             |                                 
            
                13,340
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2015
             | 
            
                +0.10 / +0.26%
             |             
            
                38.70
             |           
            
                39.00
             |               
            
                38.20
             |                           
            
                39.00
             | 
            
                38.86
             |                     
            
                12.12
             |                                 
            
                17,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2015
             | 
            
                +1.40 / +3.73%
             |             
            
                37.70
             |           
            
                39.50
             |               
            
                37.10
             |                           
            
                38.90
             | 
            
                37.91
             |                     
            
                12.09
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2015
             | 
            
                -0.70 / -1.83%
             |             
            
                38.50
             |           
            
                38.50
             |               
            
                36.60
             |                           
            
                37.50
             | 
            
                37.44
             |                     
            
                11.66
             |                                 
            
                17,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2015
             | 
            
                -0.40 / -1.04%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                37.50
             |                           
            
                38.20
             | 
            
                38.18
             |                     
            
                11.88
             |                                 
            
                11,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2015
             | 
            
                -1.50 / -3.74%
             |             
            
                40.50
             |           
            
                40.60
             |               
            
                38.60
             |                           
            
                38.60
             | 
            
                39.81
             |                     
            
                12.00
             |                                 
            
                10,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2015
             | 
            
                +2.80 / +7.51%
             |             
            
                38.50
             |           
            
                40.50
             |               
            
                37.00
             |                           
            
                40.10
             | 
            
                39.60
             |                     
            
                12.47
             |                                 
            
                41,495
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2015
             | 
            
                +3.20 / +9.38%
             |             
            
                35.10
             |           
            
                37.50
             |               
            
                35.10
             |                           
            
                37.30
             | 
            
                37.14
             |                     
            
                11.60
             |                                 
            
                47,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2015
             | 
            
                +3.10 / +10.00%
             |             
            
                31.40
             |           
            
                34.10
             |               
            
                31.40
             |                           
            
                34.10
             | 
            
                33.19
             |                     
            
                10.60
             |                                 
            
                28,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2015
             | 
            
                +0.10 / +0.32%
             |             
            
                30.90
             |           
            
                31.00
             |               
            
                30.80
             |                           
            
                31.00
             | 
            
                30.86
             |                     
            
                9.64
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2015
             | 
            
                +2.10 / +7.29%
             |             
            
                28.80
             |           
            
                30.90
             |               
            
                28.80
             |                           
            
                30.90
             | 
            
                29.55
             |                     
            
                9.61
             |                                 
            
                15,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2015
             | 
            
                +0.50 / +1.77%
             |             
            
                28.40
             |           
            
                28.80
             |               
            
                28.30
             |                           
            
                28.80
             | 
            
                28.46
             |                     
            
                8.95
             |                                 
            
                10,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2015
             | 
            
                0.00 / 0.00%
             |             
            
                28.30
             |           
            
                28.40
             |               
            
                28.20
             |                           
            
                28.30
             | 
            
                28.29
             |                     
            
                8.80
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2015
             | 
            
                -0.10 / -0.35%
             |             
            
                28.40
             |           
            
                28.40
             |               
            
                28.00
             |                           
            
                28.30
             | 
            
                28.06
             |                     
            
                8.80
             |                                 
            
                6,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2015
             | 
            
                0.00 / 0.00%
             |             
            
                28.10
             |           
            
                28.40
             |               
            
                28.00
             |                           
            
                28.40
             | 
            
                28.09
             |                     
            
                8.83
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2015
             | 
            
                0.00 / 0.00%
             |             
            
                28.40
             |           
            
                28.40
             |               
            
                28.40
             |                           
            
                28.40
             | 
            
                28.40
             |                     
            
                8.83
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |