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            | 
                    Closing price on 8/3/2012
                 |  |  
    
        |           
                
                    | Open | 38.00 |  
                    | High | 38.00 |  
                    | Low | 38.00 |  
                    | Volume | 740 |  
                    | Split-adjusted Price | 4.03 |  
                
             | 
 |  IMP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/3/2012 | -1.00 / -2.56% | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 4.03 | 740 |   |  
            | 8/2/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 0 |   |  			
            | 8/1/2012 | +0.30 / +0.78% | 38.70 | 39.00 | 38.70 | 39.00 | 39.00 | 4.14 | 1,200 |   |  
            | 7/31/2012 | -0.30 / -0.77% | 38.00 | 38.70 | 38.00 | 38.70 | 38.70 | 4.11 | 20 |   |  			
            | 7/30/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 0 |   |  
            | 7/27/2012 | +1.00 / +2.63% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 10 |   |  			
            | 7/26/2012 | -1.00 / -2.56% | 38.50 | 38.90 | 38.00 | 38.00 | 38.00 | 4.03 | 2,500 |   |  
            | 7/25/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 0 |   |  			
            | 7/24/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 1,510 |   |  
            | 7/23/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 1,000 |   |  			
            | 7/20/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 0 |   |  
            | 7/19/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 1,000 |   |  			
            | 7/18/2012 | -0.30 / -0.76% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 7,640 |   |  
            | 7/17/2012 | 0.00 / 0.00% | 39.30 | 39.30 | 39.30 | 39.30 | 39.30 | 4.17 | 4,100 |   |  			
            | 7/16/2012 | +0.30 / +0.77% | 38.10 | 39.30 | 38.10 | 39.30 | 39.30 | 4.17 | 5,100 |   |  
            | 7/13/2012 | 0.00 / 0.00% | 39.00 | 40.00 | 39.00 | 39.00 | 39.00 | 4.14 | 6,310 |   |  			
            | 7/12/2012 | 0.00 / 0.00% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 14,000 |   |  
            | 7/11/2012 | +0.10 / +0.26% | 39.00 | 39.00 | 39.00 | 39.00 | 39.00 | 4.14 | 4,600 |   |  			
            | 7/10/2012 | 0.00 / 0.00% | 38.80 | 38.90 | 38.00 | 38.90 | 38.90 | 4.13 | 10,980 |   |  
            | 7/9/2012 | +0.20 / +0.52% | 39.00 | 39.00 | 38.00 | 38.90 | 38.90 | 4.13 | 11,190 |   |  			
            | 7/6/2012 | +0.30 / +0.78% | 38.70 | 38.70 | 38.70 | 38.70 | 38.70 | 4.11 | 5,000 |   |  
            | 7/5/2012 | 0.00 / 0.00% | 38.70 | 39.00 | 38.30 | 38.40 | 38.40 | 4.07 | 7,000 |   |  			
            | 7/4/2012 | +0.10 / +0.26% | 38.70 | 39.00 | 38.40 | 38.40 | 38.40 | 4.07 | 5,710 |   |  
            | 7/3/2012 | -0.60 / -1.54% | 37.50 | 38.50 | 37.50 | 38.30 | 38.30 | 4.06 | 7,560 |   |  			
            | 7/2/2012 | -0.10 / -0.26% | 38.80 | 38.90 | 38.80 | 38.90 | 38.90 | 4.13 | 1,980 |   |  
            | 6/29/2012 | +0.10 / +0.26% | 37.50 | 39.00 | 37.50 | 39.00 | 39.00 | 4.14 | 4,010 |   |  			
            | 6/28/2012 | +0.10 / +0.26% | 39.00 | 39.00 | 38.20 | 38.90 | 38.90 | 4.13 | 4,300 |   |  
            | 6/27/2012 | -0.10 / -0.26% | 38.50 | 38.90 | 38.40 | 38.80 | 38.80 | 4.12 | 5,000 |   |  			
            | 6/26/2012 | +0.20 / +0.52% | 38.70 | 38.90 | 37.20 | 38.90 | 38.90 | 4.13 | 7,050 |   |  
            | 6/25/2012 | +0.30 / +0.78% | 38.50 | 38.70 | 38.50 | 38.70 | 38.70 | 4.11 | 3,100 |   |  |