Year	constant 2015 US$
1978	1843717801281.1663
1979	1967906804186.1409
1980	2106825586309.4207
1981	2169549099107.7568
1982	2236457342995.59
1983	2301504829499.299
1984	2425510570390.8535
1985	2542359583490.433
1986	2660031481075.8193
1987	2794877707581.6924
1988	2916849287989.317
1989	3029728147814.14
1990	3116771888986.077
1991	3231730232969.3584
1992	3410279498501.59
1993	3611735824478.203
1994	3779453501612.1465
1995	3929909759670.573
1996	4150155031294.8755
1997	4402561575243.58
1998	4565503367177.914
1999	4765856962292.619
2000	5029713348126.1455
2001	5279597910950.066
2002	5561744298283.215
2003	5851323380503.7705
2004	6313613305956.259
2005	6805567708418.23
2006	7399087140611.688
2007	8131663003247.188
2008	8681483318964.555
2009	9099588446481.494
2010	9778241311527.025
2011	10442312508828.209
2012	11087608619308.809
2013	11760171506911.12
2014	12442873586966.93
2015	13135403840437.621
2016	13821719621487.121
2017	14618697305089.621
2018	15473510004705.422
2019	16260458278190.4
2020	15992958050172.191
2021	17174216569363.543
2022	17913166296467.605
2023	18878311235995.656