Year	current US$
2002	104000000
2003	128000000
2004	167000000
2005	122000000
2006	129000000
2007	149000000
2008	168000000
2009	170000000
2010	179000000
2011	176000000
2012	159000000
2013	164000000
2014	169000000
2015	145000000
2016	153000000
