Year	current US$
1960	354406708.5953878
1961	385151991.6142558
1962	387662473.7945493
1963	427296645.7023061
1964	477492662.4737946
1965	774324513.5097299
1966	816743665.1266975
1967	828223435.5312895
1968	887862242.755145
1969	990900181.9963602
1982	2178500000
1983	2186000000
1984	3387770931.1845565
1985	3288798828.4441724
1986	3743815623.990307
1987	6295616101.532227
1988	6495550000
1989	5227013386.495099
1990	4324933443.892054
1991	3347179427.3808827
1992	2865026233.895214
1993	3021492906.008039
1994	3682977578.0589128
1995	5471777711.699018
1996	5394452332.196575
1997	5387441249.883042
1998	6187800226.590209
1999	5492877041.089575
2000	5695457998.02873
2001	5431186878.256025
2002	5822920241.017554
2003	6130128718.768946
2004	7127481691.5885315
2005	8142185264.344924
2006	9154160413.535854
2007	10850197728.60817
2008	12233940658.278273
2009	21468276300.835373
2010	22607519337.660866
2011	24292424332.73979
2012	23277542894.568478
2013	23032794134.322308
2014	24933735242.07828
2015	27757538861.40083
2016	23110587751.575287
2017	24257620875.5854
2018	26650690737.018642
2019	28260683171.32155
2020	30367337088.98681
2021	33252994853.35172
2022	36777324996.31924
2023	39808456016.47897