Year	constant 2015 US$
1960	1134619902.095489
1961	1554363709.8554547
1962	931306456.3436463
1963	603381663.6269499
1964	544355197.5217065
1965	603381663.6269499
1966	921527551.595057
1967	1279898796.923255
1968	1203105661.3949614
1969	1129967927.6226957
1970	1060487860.6484852
1971	1243331105.395271
1972	1455428886.502571
1973	1704093227.6364539
1974	1992983447.6621501
1975	2351361598.422388
1976	1802826960.1953907
1977	1451771481.4229095
1978	1151909308.8694038
1979	1236017950.227801
1980	1843053361.5848749
1981	3335053957.5589285
1982	4563750217.014878
1983	3857408734.468116
1984	3430224626.5501056
1985	3258075785.167465
1986	2101916013.50101
1987	1447325565.5101397
1988	1234795772.3380926
1989	1005264132.2172797
1990	1153440616.4300869
1991	1448265632.03434
1992	1450998514.3387518
1993	1916443320.113453
1994	3357427073.052848
1995	2303178478.1059017
1996	2227060779.124383
1997	1409940386.2755637
1998	1404896526.528812
1999	1719909515.6441324
2000	2046967920.233244
2001	2019430503.8191104
2002	2044076083.8499558
2003	2319696200.7631583
2004	2331557659.6530757
2005	2440243629.103182
2006	2624943696.332756
2007	4754686619.016597
2008	4288845729.5262194
2009	4460854805.93461
2010	7179528141.83985
2011	4478313073.233769
2012	6168293751.899279
2013	6753231305.696133
2014	7721055276.511599
2015	9547722567.840887
2016	7820707612.459394
2017	5091904406.553981
2018	3678867396.0940895
2019	3327551611.708028
2020	2625101120.7247734
2021	2987482999.0113726
2022	3276210387.6407037
2023	3553577148.020155