57 Consolidated statement of comprehensive income  For the year ended 31 December 2012  2012 2011 US$000 US$000 Net profit  62,513 57,352 Exchange differences on translating foreign operations  (322) (92) Cash flow hedges  8,871 (6,825) Income tax relating to components of other comprehensive income  (725) 314 Other comprehensive income (loss) for the year, net of tax  7,824 (6,603) Total comprehensive income for the year  70,337 50,749