Year	constant 2015 US$
1975	626907283.9917911
1976	727010123.583308
1977	735099216.2929568
1978	728021245.0605762
1979	759872296.9333482
1980	824585159.4816538
1981	885759217.7510223
1982	920643513.1742914
1983	977773085.5345865
1984	1015185184.6408323
1985	1054114207.6950145
1986	1092031867.6010587
1987	1397396356.4058754
1988	1516205426.9132533
1989	1563223542.7178607
1990	1832186933.0327797
1991	1885777254.7462986
1992	2147662765.463352
1993	1838253713.478395
1994	1919650525.5869553
1995	1734525461.0050662
1996	1859727016.8460867
1997	2064583013.9767041
1998	2368139037.4722147
1999	2452038290.4223332
2000	2374023055.9411225
2001	2555532588.938868
2002	2683287759.8638487
2003	2892929873.8883543
2004	2841480391.5380774
2005	2907633803.61731
2006	3116212675.912247
2007	3221433850.2580147
2008	3426189945.4811563
2009	3640725214.1575613
2010	3664463130.662585
2011	3722543856.9734035
2012	3632946117.668261
2013	3458315544.58531
2014	3199843824.7637315
2015	3244992351.0924697
2016	3252749020.622948
2017	3312356818.948047
2018	3431728384.9027743
2019	3851612024.396643
2020	4277304246.2252045
2021	4600748904.566245
2022	4742567817.486557
2023	4853062385.376965