Year	constant 2015 US$
1970	2358005584.955469
1971	2582403457.571484
1972	2658669154.647265
1973	2858958421.6628895
1974	2525961427.312499
1975	2272542026.0164056
1976	2308932939.316015
1977	1887101685.864843
1978	2433471323.237108
1979	2125781208.4089832
1980	2509793605.470311
1981	2502081381.367577
1982	2568064112.973046
1983	2441983506.1339836
1984	2579203622.3949213
1985	2396975006.21289
1986	3104029847.969921
1987	3605508593.7874994
1988	4143636769.4082026
1989	4467779850.891406
1990	4702286495.453906
1991	5401408320.042968
1992	4717333709.276562
1993	5169014188.024218
1994	5181820185.807811
1995	4924462013.749998
1996	4940338033.701951
1997	5676665154.052341
1998	6143016721.752732
1999	7254879560.680076
2000	7482169933.40195
2001	7416792995.834762
2002	7050771350.294918
2003	7603413064.037887
2004	8013489028.412886
2005	8416269945.532026
2006	8225255096.769135
2007	9141189054.341011
2008	10069329872.735542
2009	7690412188.8175745
2010	9320880214.542183
2011	10211647091.216011
2012	10160623921.914839
2013	10264047166.014448
2014	11289680882.108198
2015	11388662746.106634
2016	11089165274.462885
2017	11912535900.108587
2018	10954256273.55312
2019	12226046519.560932
2020	11437572293.351166
2021	13316018669.156244
2022	12016714722.486713
2023	11925213194.39687