Year	current US$
1977	595300000
1978	706300000
1979	1041000000
1980	1235100000
1981	1355000000
1982	1479900000
1983	1584600000
1984	1933300000
1985	2192599900
1986	2326300000
1987	2564200000
1989	3294310000
1990	3327450000
1991	3405010000
1992	3301810000
1993	3181490000
1994	3456540000
1995	3758400000
1996	4130630000
1997	6235500000
1998	6981500000
1999	7372500000
2000	7812400000
2001	8073400000
2002	8036400000
2003	8151800000
2004	8303600000
2005	9493700000
2006	10704800000
2007	10727000000
2008	10725500000
2009	10113500000
2010	10316400000
2011	10766500000
2012	11577700000
2013	11042400000
2014	11922100000
2015	11795800000
2016	11988600000
2017	13114000000
2018	13182800000
2019	13030500000
2020	10764100000
2021	12498200000
2022	13289300000
2023	14496500000