Year	current US$
1960	46379454.92662474
1961	44948637.31656185
1962	50056603.77358491
1963	66095387.84067086
1964	71203354.29769392
1965	99398012.03975922
1966	106397872.04255916
1967	130197396.05207898
1968	135797284.05431893
1969	163796724.0655187
1970	176396472.0705586
1971	228195436.0912782
1972	173596528.06943864
1973	148399109.60534236
1974	243798118.0496151
1975	190000000
1976	153000000
1977	177647058.8235294
1978	200434782.60869566
1979	140750000
1980	76600000
1981	75000000
1982	198000000
1983	166000000
1984	294307751.9713879
1985	307340455.65142196
1986	331393463.9111412
1987	609285687.2497104
1988	702466666.6666666
1989	587600933.42119
1990	546834333.5356596
1991	503948337.4049435
1992	455448127.77448905
1993	490981260.25216097
1994	585868068.5035063
1995	714413694.5057211
1996	1219355424.7439332
1997	1139674297.7630298
1998	1083014215.1650174
1999	1172666367.8654323
2000	1206681172.1559103
2001	1127337527.047391
2002	1249146324.4082139
2003	1386397950.2267997
2004	1599464542.350437
2005	2065441501.1267397
2006	2108313875.2019005
2007	2628449895.867016
2008	3318083403.4611325
2009	6688026468.27576
2010	7229557656.615739
2011	7457074661.271453
2012	7147917569.507826
2013	9245527742.697685
2014	8757555312.282753
2015	7727515466.389768
2016	7422277911.983294
2017	7567457914.897277
2018	8010684018.455516
2019	9024193391.431244
2020	9105286581.61499
2021	9762154207.12615
2022	11027422408.353498
2023	11463217265.125895