Year	current US$
1961	321652622.59178144
1962	446750064.96157986
1963	633839414.9745722
1964	783436653.1794052
1965	831762652.7050611
1966	669618730.4963303
1967	521444106.1331014
1968	431381571.3792707
1969	498227648.6805829
1970	747454476.6667215
1971	1056551862.9737121
1972	1295419218.2566898
1973	1778684542.8932285
1974	2135709576.8866377
1975	2157576430.544296
1976	2660862828.249878
1977	3803946803.946804
1978	4820581821.892974
1979	6700625886.152327
1980	9306717753.703064
1981	10143249650.71861
1982	9773774501.364681
1983	7380284582.584269
1984	7440521872.601688
1985	7486955684.6259985
1986	8832636003.102776
1987	11946526464.27083
1988	15117858057.904177
1989	17801599683.688942
1990	20166629224.301167
1991	23421964809.146423
1992	28323060420.642735
1993	32499166514.01711
1994	39865473097.53084
1995	43700400461.0751
1996	49528758688.29754
1997	59064724570.893906
1998	51004004605.09574
1999	42776023203.35159
2000	45502297666.062096
2001	43703798685.686806
2002	37835509725.26057
2003	34947442771.37445
2004	36897791474.06266
2005	38850335969.92697
2006	43403739498.51908
2007	43627458960.34016
2008	45049893840.02457
2009	43803270229.303055
2010	49793240382.14135
2011	58491007194.244606
2012	66707475887.3846
2013	66466735430.634346
2014	68469218088.07051
2015	69301125552.29465
2016	68951141743.69545
2017	73907637427.5009
2018	78132168144.41539
2019	66434470911.31772
2020	58744779043.98494
2021	62143119030.00675
2022	57643335810.10946
2023	63631230424.404465