| 
                 
                    Closing price on 8/29/2014
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    46.00 | 
                 
                
                    | High | 
                    46.20 | 
                 
                
                    | Low | 
                    45.80 | 
                     
                
                    | Volume | 
                    30,870 | 
                                 
                
                    | Split-adjusted Price | 
                    9.02 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
IMP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/29/2014
             | 
            
                -0.40 / -0.87%
             |             
            
                46.00
             |           
            
                46.20
             |               
            
                45.80
             |                           
            
                45.80
             | 
            
                45.80
             |                     
            
                9.02
             |                                 
            
                30,870
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2014
             | 
            
                -0.20 / -0.43%
             |             
            
                46.40
             |           
            
                46.50
             |               
            
                46.20
             |                           
            
                46.20
             | 
            
                46.20
             |                     
            
                9.10
             |                                 
            
                28,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2014
             | 
            
                -20.10 / -30.23%
             |             
            
                47.40
             |           
            
                47.40
             |               
            
                46.30
             |                           
            
                46.40
             | 
            
                46.40
             |                     
            
                9.14
             |                                 
            
                76,270
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2014
             | 
            
                -0.50 / -0.75%
             |             
            
                67.00
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                66.50
             | 
            
                66.50
             |                     
            
                8.73
             |                                 
            
                99,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2014
             | 
            
                -0.50 / -0.74%
             |             
            
                67.00
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                100,290
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2014
             | 
            
                +0.50 / +0.75%
             |             
            
                67.00
             |           
            
                67.50
             |               
            
                66.50
             |                           
            
                67.50
             | 
            
                67.50
             |                     
            
                8.87
             |                                 
            
                48,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2014
             | 
            
                0.00 / 0.00%
             |             
            
                67.50
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                72,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2014
             | 
            
                +2.50 / +3.88%
             |             
            
                64.00
             |           
            
                67.50
             |               
            
                64.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                44,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2014
             | 
            
                -3.00 / -4.44%
             |             
            
                66.00
             |           
            
                67.50
             |               
            
                64.50
             |                           
            
                64.50
             | 
            
                64.50
             |                     
            
                8.47
             |                                 
            
                71,840
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2014
             | 
            
                -1.50 / -2.17%
             |             
            
                69.00
             |           
            
                69.00
             |               
            
                67.00
             |                           
            
                67.50
             | 
            
                67.50
             |                     
            
                8.87
             |                                 
            
                64,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2014
             | 
            
                -0.50 / -0.72%
             |             
            
                68.50
             |           
            
                69.50
             |               
            
                68.50
             |                           
            
                69.00
             | 
            
                69.00
             |                     
            
                9.06
             |                                 
            
                25,770
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2014
             | 
            
                +2.00 / +2.96%
             |             
            
                68.50
             |           
            
                70.00
             |               
            
                68.00
             |                           
            
                69.50
             | 
            
                69.50
             |                     
            
                9.13
             |                                 
            
                125,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2014
             | 
            
                +1.00 / +1.50%
             |             
            
                67.50
             |           
            
                67.50
             |               
            
                67.00
             |                           
            
                67.50
             | 
            
                67.50
             |                     
            
                8.87
             |                                 
            
                26,950
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2014
             | 
            
                -0.50 / -0.75%
             |             
            
                67.50
             |           
            
                67.50
             |               
            
                66.50
             |                           
            
                66.50
             | 
            
                66.50
             |                     
            
                8.73
             |                                 
            
                18,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2014
             | 
            
                +1.00 / +1.52%
             |             
            
                67.00
             |           
            
                67.00
             |               
            
                66.50
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                24,220
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2014
             | 
            
                -1.00 / -1.49%
             |             
            
                66.00
             |           
            
                68.00
             |               
            
                66.00
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                8.67
             |                                 
            
                17,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2014
             | 
            
                +1.00 / +1.52%
             |             
            
                65.00
             |           
            
                67.50
             |               
            
                65.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                41,880
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2014
             | 
            
                -1.00 / -1.49%
             |             
            
                66.50
             |           
            
                67.00
             |               
            
                66.00
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                8.67
             |                                 
            
                48,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2014
             | 
            
                0.00 / 0.00%
             |             
            
                67.00
             |           
            
                67.00
             |               
            
                66.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                67,780
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2014
             | 
            
                0.00 / 0.00%
             |             
            
                67.00
             |           
            
                67.50
             |               
            
                66.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                56,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2014
             | 
            
                +2.00 / +3.08%
             |             
            
                65.00
             |           
            
                68.00
             |               
            
                65.00
             |                           
            
                67.00
             | 
            
                67.00
             |                     
            
                8.80
             |                                 
            
                109,750
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2014
             | 
            
                +2.50 / +4.00%
             |             
            
                62.50
             |           
            
                65.00
             |               
            
                62.50
             |                           
            
                65.00
             | 
            
                65.00
             |                     
            
                8.54
             |                                 
            
                37,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2014
             | 
            
                +0.50 / +0.81%
             |             
            
                62.00
             |           
            
                63.00
             |               
            
                62.00
             |                           
            
                62.50
             | 
            
                62.50
             |                     
            
                8.21
             |                                 
            
                26,710
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2014
             | 
            
                -0.50 / -0.80%
             |             
            
                62.00
             |           
            
                62.50
             |               
            
                61.00
             |                           
            
                62.00
             | 
            
                62.00
             |                     
            
                8.14
             |                                 
            
                18,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2014
             | 
            
                -0.50 / -0.79%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                61.00
             |                           
            
                62.50
             | 
            
                62.50
             |                     
            
                8.21
             |                                 
            
                51,010
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2014
             | 
            
                -1.00 / -1.56%
             |             
            
                64.00
             |           
            
                64.00
             |               
            
                62.50
             |                           
            
                63.00
             | 
            
                63.00
             |                     
            
                8.27
             |                                 
            
                44,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2014
             | 
            
                +4.00 / +6.67%
             |             
            
                60.00
             |           
            
                64.00
             |               
            
                60.00
             |                           
            
                64.00
             | 
            
                64.00
             |                     
            
                8.41
             |                                 
            
                180,870
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2014
             | 
            
                -1.00 / -1.64%
             |             
            
                61.00
             |           
            
                61.50
             |               
            
                59.50
             |                           
            
                60.00
             | 
            
                60.00
             |                     
            
                7.88
             |                                 
            
                54,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2014
             | 
            
                +2.50 / +4.27%
             |             
            
                58.50
             |           
            
                61.50
             |               
            
                58.50
             |                           
            
                61.00
             | 
            
                61.00
             |                     
            
                8.01
             |                                 
            
                151,990
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2014
             | 
            
                +1.50 / +2.63%
             |             
            
                57.00
             |           
            
                59.50
             |               
            
                57.00
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                7.68
             |                                 
            
                44,600
             |  
            
                 
             |                                                              
             
    
         
    
    
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