Year	current US$
1980	10152881929.185402
1981	8669720760.760792
1982	8389197843.540999
1983	7620802918.1068
1984	7045798125.789395
1985	7005497959.9523
1986	8908328061.620909
1987	10426815151.284958
1988	11571897779.780975
1989	11948519976.626293
1990	13569188692.971
1991	14276881244.58023
1992	15622874326.540173
1993	14911502043.230455
1994	16197646126.263176
1995	18736346206.088993
1996	19441306748.74218
1997	18249358276.477383
1998	19770020415.608818
1999	20474463994.24586
2000	19643655458.309807
2001	20009557315.662468
2002	21503043045.095726
2003	26114102506.65761
2004	30187880435.95315
2005	32611243802.600067
2006	35285237158.24181
2007	42302601713.08955
2008	47388851435.26239
2009	47847985007.01245
2010	47574252497.10175
2011	53087964894.389595
2012	52543650680.97439
2013	55108176737.52817
2014	65230075834.45679
2015	57639281189.076836
2016	59572411902.91978
2017	62943574689.140465
2018	67580983032.1469
2019	68944136450.62178
2020	64548370632.905846
2021	73617642307.6461
2022	71317611257.53642
2023	76025868851.61125
