| 
                 
                    Closing price on 9/9/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    28.30 | 
                 
                
                    | High | 
                    28.50 | 
                 
                
                    | Low | 
                    28.30 | 
                     
                
                    | Volume | 
                    5,700 | 
                                 
                
                    | Split-adjusted Price | 
                    8.86 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/9/2015
             | 
            
                +0.20 / +0.71%
             |             
            
                28.30
             |           
            
                28.50
             |               
            
                28.30
             |                           
            
                28.50
             | 
            
                28.33
             |                     
            
                8.86
             |                                 
            
                5,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2015
             | 
            
                +0.40 / +1.43%
             |             
            
                28.20
             |           
            
                28.50
             |               
            
                27.80
             |                           
            
                28.30
             | 
            
                28.06
             |                     
            
                8.80
             |                                 
            
                7,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2015
             | 
            
                -0.10 / -0.36%
             |             
            
                27.90
             |           
            
                27.90
             |               
            
                27.90
             |                           
            
                27.90
             | 
            
                27.90
             |                     
            
                8.67
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2015
             | 
            
                0.00 / 0.00%
             |             
            
                27.90
             |           
            
                28.00
             |               
            
                27.50
             |                           
            
                28.00
             | 
            
                27.71
             |                     
            
                8.71
             |                                 
            
                9,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2015
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                28.00
             |               
            
                27.00
             |                           
            
                28.00
             | 
            
                27.36
             |                     
            
                8.71
             |                                 
            
                8,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2015
             | 
            
                -1.30 / -4.44%
             |             
            
                28.00
             |           
            
                28.20
             |               
            
                27.60
             |                           
            
                28.00
             | 
            
                27.94
             |                     
            
                8.71
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2015
             | 
            
                -0.10 / -0.34%
             |             
            
                28.20
             |           
            
                29.30
             |               
            
                28.00
             |                           
            
                29.30
             | 
            
                28.16
             |                     
            
                9.11
             |                                 
            
                8,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2015
             | 
            
                +1.00 / +3.52%
             |             
            
                28.30
             |           
            
                29.40
             |               
            
                28.30
             |                           
            
                29.40
             | 
            
                28.77
             |                     
            
                9.14
             |                                 
            
                19,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2015
             | 
            
                +0.60 / +2.16%
             |             
            
                27.50
             |           
            
                28.50
             |               
            
                27.50
             |                           
            
                28.40
             | 
            
                28.11
             |                     
            
                8.83
             |                                 
            
                26,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2015
             | 
            
                +1.40 / +5.30%
             |             
            
                26.40
             |           
            
                27.80
             |               
            
                26.40
             |                           
            
                27.80
             | 
            
                27.00
             |                     
            
                8.64
             |                                 
            
                19,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2015
             | 
            
                +0.50 / +1.93%
             |             
            
                25.70
             |           
            
                26.60
             |               
            
                25.70
             |                           
            
                26.40
             | 
            
                26.23
             |                     
            
                8.21
             |                                 
            
                16,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2015
             | 
            
                -0.40 / -1.52%
             |             
            
                26.30
             |           
            
                26.30
             |               
            
                25.50
             |                           
            
                25.90
             | 
            
                25.96
             |                     
            
                8.05
             |                                 
            
                50,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2015
             | 
            
                -0.50 / -1.87%
             |             
            
                26.40
             |           
            
                26.50
             |               
            
                25.60
             |                           
            
                26.30
             | 
            
                26.19
             |                     
            
                8.18
             |                                 
            
                64,020
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2015
             | 
            
                -0.10 / -0.37%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.30
             |                           
            
                26.80
             | 
            
                26.56
             |                     
            
                8.33
             |                                 
            
                11,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2015
             | 
            
                +0.20 / +0.75%
             |             
            
                26.70
             |           
            
                27.00
             |               
            
                26.50
             |                           
            
                26.90
             | 
            
                26.70
             |                     
            
                8.36
             |                                 
            
                6,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2015
             | 
            
                -0.70 / -2.55%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                26.70
             |                           
            
                26.70
             | 
            
                26.74
             |                     
            
                8.30
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2015
             | 
            
                +0.10 / +0.37%
             |             
            
                27.50
             |           
            
                27.60
             |               
            
                26.90
             |                           
            
                27.40
             | 
            
                27.14
             |                     
            
                8.52
             |                                 
            
                12,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2015
             | 
            
                -0.70 / -2.50%
             |             
            
                27.00
             |           
            
                27.30
             |               
            
                26.90
             |                           
            
                27.30
             | 
            
                26.99
             |                     
            
                8.49
             |                                 
            
                10,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2015
             | 
            
                -0.70 / -2.44%
             |             
            
                28.70
             |           
            
                28.70
             |               
            
                27.90
             |                           
            
                28.00
             | 
            
                28.09
             |                     
            
                8.39
             |                                 
            
                22,465
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2015
             | 
            
                -0.10 / -0.35%
             |             
            
                28.20
             |           
            
                28.90
             |               
            
                28.00
             |                           
            
                28.70
             | 
            
                28.27
             |                     
            
                8.60
             |                                 
            
                16,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2015
             | 
            
                -1.70 / -5.57%
             |             
            
                30.50
             |           
            
                30.50
             |               
            
                28.10
             |                           
            
                28.80
             | 
            
                30.50
             |                     
            
                8.63
             |                                 
            
                61,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2015
             | 
            
                -3.30 / -9.76%
             |             
            
                30.60
             |           
            
                32.80
             |               
            
                30.50
             |                           
            
                30.50
             | 
            
                30.84
             |                     
            
                9.14
             |                                 
            
                61,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2015
             | 
            
                +2.90 / +9.39%
             |             
            
                30.90
             |           
            
                33.80
             |               
            
                30.00
             |                           
            
                33.80
             | 
            
                30.91
             |                     
            
                10.13
             |                                 
            
                170,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2015
             | 
            
                +0.10 / +0.32%
             |             
            
                33.00
             |           
            
                33.80
             |               
            
                30.80
             |                           
            
                30.90
             | 
            
                32.31
             |                     
            
                9.26
             |                                 
            
                58,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2015
             | 
            
                +2.80 / +10.00%
             |             
            
                28.00
             |           
            
                30.80
             |               
            
                28.00
             |                           
            
                30.80
             | 
            
                28.62
             |                     
            
                9.23
             |                                 
            
                1,148,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2015
             | 
            
                +1.00 / +3.70%
             |             
            
                27.50
             |           
            
                28.00
             |               
            
                27.50
             |                           
            
                28.00
             | 
            
                27.99
             |                     
            
                8.39
             |                                 
            
                520,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2015
             | 
            
                +1.40 / +5.47%
             |             
            
                25.60
             |           
            
                28.00
             |               
            
                25.60
             |                           
            
                27.00
             | 
            
                26.01
             |                     
            
                8.09
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2015
             | 
            
                0.00 / 0.00%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                25.60
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                7.67
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2015
             | 
            
                0.00 / 0.00%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                25.60
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                7.67
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2015
             | 
            
                0.00 / 0.00%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                25.60
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                7.67
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |