Year	current US$
1981	15298580000
1982	13877610000
1983	22699050000
1984	19333650000
1985	24153930000
1986	14861230000
1987	18252570000
1988	23056220000
1989	39696180000
1990	47868790000
1991	56721200000
1992	89008100000
1993	214726800000
1994	184023500000
1995	213755810000
1996	306164190000
1997	93230310000
1998	95561430000
1999	139907890000
2000	113155790000
2001	118980790000
2002	125778160000
2003	160814200000
2004	181623790000
2005	180517540000
2006	235580900000
2007	325290260000
2008	189239210000
2009	289219390000
2010	408689120000
2011	395623820000
2012	466587570000
2013	500387410000
2014	459004370000
2015	382976650000
2016	359788303780.529
2017	455772490000
2018	398018700000
2019	403957380000
2020	436537870000
2021	414285260000
2022	381207160000