Year	constant 2015 US$
1960	192540532.93810555
1961	221471492.38011342
1962	234440529.65033442
1963	292302448.53435016
1964	323228654.47204846
1965	352159613.91405636
1966	389372664.2636567
1967	492747656.27611524
1968	529961876.69998854
1969	589229687.6533903
1970	631267038.7389473
1971	658143760.0872372
1972	771168896.8632903
1973	771168896.8632903
1974	1680853292.9062634
1975	2154995780.533478
1976	2425145468.578342
1977	2396890155.1658463
1978	1946179850.1323657
1979	1661556886.662224
1980	1929640628.0167372
1981	2773106002.2814164
1982	2508260981.433437
1983	2877956670.3217506
1984	2926886982.042491
1985	2981642330.955122
1986	2857763208.2345505
1987	1736637731.6453035
1988	1973134238.557345
1989	2107498427.9405797
1990	2008084461.2374563
1991	1969344933.4677088
1992	2006177979.852771
1993	2122842503.458606
1994	1780991933.4630926
1995	1793663476.8753998
1996	1837429073.5291052
1997	2093866467.9615767
1998	2639421362.002676
1999	2023834134.3865209
2000	1690351531.5874867
2001	1696893578.0104287
2002	1835609189.5785592
2003	1639985777.178113
2004	1684035170.1710365
2005	1840274299.8954096
2006	2156376475.8725543
2007	2234241098.923464
2008	2513685535.7692227
2009	2516998494.0248137
2010	3312073736.3029027
2011	3725934560.8191223
2012	4066706623.7675877
2013	4170219305.672054
2014	4498319295.855239
2015	4015443368.984218
2016	3752275447.8399873
2017	3479020538.96697
2018	5261699304.374623
2019	6601025349.484369
2020	6204255288.115027
2021	6420442283.845642
2022	6955366396.529484
2023	6889885621.246554