Year	current US$
1995	168180313.11035198
1996	164000000
1997	171000000
1998	181000000
1999	183000000
2000	152000000
2001	175000000
2002	210000000
2003	269000000
2004	286000000
2005	334000000
2006	329000000
2007	622000000
2008	640000000
2009	475000000
2010	464000000
2011	525000000
2012	469000000
2013	495000000
2014	482000000
2015	417000000
2016	439000000
2017	470000000
2018	557000000