Year	constant 2015 US$
1960	189092485.04078144
1961	153130373.38615042
1962	160089900.91227865
1963	199532476.8759904
1964	218093742.0321477
1965	277255850.5768944
1966	356140360.4534226
1967	444305160.65329957
1968	468665427.1851028
1969	509267255.6692205
1970	551032189.1499515
1971	659263085.9614689
1972	711460219.4153472
1973	702520242.0808663
1974	711171733.496383
1975	754424351.6643002
1976	704751918.711189
1977	771826493.1219274
1978	815958226.4050533
1979	1040219412.0319993
1980	1227147247.008634
1981	1343019806.6378586
1982	1030147840.6809199
1983	761903660.8101759
1984	762805339.2306187
1985	899857842.1734818
1986	778246137.1730168
1987	713430126.0561326
1988	736838877.6536018
1989	567059463.4614285
1990	767631074.563075
1991	969160756.6939586
1992	1156093842.040318
1993	1252492383.5319648
1994	1103339872.8521101
1995	1164091036.811657
1996	1042295351.0300809
1997	1161484130.8501987
1998	1276214985.3469243
1999	1488214292.2347932
2000	1330723219.2147865
2001	1509663279.023955
2002	1457692427.121089
2003	1532299937.6781619
2004	1474045699.7858663
2005	1409064273.2850666
2006	1513679718.326548
2007	1972357668.5723839
2008	2055468999.8708386
2009	2152935175.5147448
2010	2311167752.807219
2011	2205626038.3738217
2012	2456235653.341217
2013	3212044051.7738204
2014	3683947795.802918
2015	3648295538.292952
2016	3768810745.013371
2017	4308626264.698843
2018	4517107167.930227
2019	4670415433.660789
2020	3746009218.3426332
2021	4375075379.174925
2022	5185846758.566678
2023	5637013615.89094