Year	constant 2015 US$
1960	398014879.1918479
1961	359292809.20616746
1962	473916967.0900224
1963	545364338.1922306
1964	546392326.6133728
1965	593338882.6471337
1966	672667768.3616054
1967	875016367.077082
1968	873988355.5087821
1969	883583211.1613
1970	930358119.4470484
1971	755594717.7122844
1972	740174416.8784183
1973	938924951.9576876
1974	1254184425.3846593
1975	981759114.5108831
1976	1052007150.3569869
1977	1416954254.660381
1978	1565124029.8336678
1979	1666121056.2211266
1980	1471169438.6837916
1981	1181739751.1224012
1982	779225147.4307774
1983	835624611.788017
1984	1065821988.0925148
1985	1127660221.745897
1986	965947857.9865128
1987	1266506516.0785074
1988	1575860198.4564686
1989	1493961775.1196697
1990	1583879745.3569577
1991	1748768517.414994
1992	1975143368.1715093
1993	2558538926.2803516
1994	2788088108.8040004
1995	2929134018.080496
1996	2716091872.298128
1997	2919073777.248602
1998	2995744408.6507053
1999	3276268007.268717
2000	3491841329.4676147
2001	3355620306.333214
2002	3202467137.3325744
2003	3358328523.7855034
2004	4094940523.6505904
2005	4047778189.8126397
2006	4339883746.557682
2007	5410081009.787497
2008	5891773361.771673
2009	3285125637.5216894
2010	3679599499.247511
2011	4567292997.498024
2012	4443814484.684011
2013	3935294576.9117684
2014	4304329712.312236
2015	5269705071.843811
2016	4996638052.316789
2017	5624111203.570372
2018	6066476534.602069
2019	5323996730.257021
2020	4446001891.087784
2021	5794427990.014369
2022	6461911003.372933
2023	5502912685.79098