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Supplemental cash flow information
12 Months Ended
Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]  
Supplemental cash flow information
Supplemental cash flow information
 
 
 
2017
 
2016
 
2015
Year ended December 31,
 
$’000
 
$’000
 
$’000
 
 
 
 
 
 
 
Cash paid during the period for:
 
 
 
 
 
 
   Interest
 
30,329

 
40,930

 
27,828

 
 
 
 
 
 
 
   Income taxes, net of refunds
 
19,838

 
19,804

 
18,306



To reflect the actual cash paid for capital expenditure to acquire property, plant and equipment, increases in accounts payable for capital expenditure are non-cash and excluded from capital expenditure, while decreases are cash payments and included. The changes in accounts payable were an increase of $661,000 and a decrease of $223,000 for the years ended December 31, 2017 and 2016, respectively.

During the year ended December 31, 2016, cash paid during the period for interest of $30,329,000 (December 31, 2016 $40,930,000 ) included the payment of accrued interest on a 1984 development loan from a municipal agency that was fully repaid by Charleston Center LLC in June 2016. See Note 11.