Year	current US$
1964	34184553246.027378
1965	37201663376.41026
1966	39424580790.377365
1967	41217007694.29785
1968	44255455091.67346
1969	48697811760.47228
1970	53164703929.3034
1971	59635726885.35997
1972	64039166293.73645
1973	80996999964.2027
1974	95407255231.5417
1975	112443826198.9644
1976	114373549844.14513
1977	128174062097.69598
1978	149664534393.59772
1979	179433370032.5732
1980	223392867364.01468
1981	235129085972.38785
1982	224400835230.78055
1983	233915664281.35153
1984	222165629768.96616
1985	191619125777.95135
1986	229524390074.27176
1987	282524117193.2362
1988	302025630506.4289
1989	315292713011.97064
1990	381724386084.60956
1991	408622373564.21924
1992	375804823215.9366
1993	371043978285.0675
1994	357886381496.3267
1995	408074259092.18604
1996	418860750444.8262
1997	436398100625.078
1998	425790322396.0388
1999	424729646357.17224
2000	430252289391.09845
2001	398543956246.09204
2002	403395744110.30273
2003	524927928482.78564
2004	641832531096.9174
2005	724819215729.075
2006	806899855521.3702
2007	926737529653.7697
2008	1007149914259.6328
2009	1048708356772.4089
2010	1195849428955.0774
2011	1337369340609.1428
2012	1388662346772.7515
2013	1462427005495.2244
2014	1475824699429.6157
2015	1375435909014.3977
2016	1305443653226.6184
2017	1445585841144.6318
2018	1567778170763.6113
2019	1562953571970.0154
2020	1491977905707.7266
2021	1696922191787.961
2022	1800817095185.445
2023	1937887338474.6057