Year	current US$
1960	135645847.7416609
1961	133041862.78325489
1962	142939844.82406208
1963	148343814.66247413
1964	172199777.12008914
1965	150639799.7440801
1966	234640326.14386955
1967	237439625.02414998
1968	272720030.91198766
1969	303520018.59199256
1970	377747988.90080446
1971	308840016.46399343
1972	425599829.7600681
1973	615609456.2183126
1974	550479779.8080881
1975	438501207.8533139
1976	727368654.4215499
1977	1220071959.8393586
1978	1060188115.9207662
1979	1016145285.7667823
1980	1320182631.5158904
1981	1348660148.9163082
1982	1161796595.5050778
1983	1221793128.461617
1984	1138811041.4444416
1985	1490651508.8713157
1986	1575100849.008939
1987	1528640325.0856962
1988	1675438804.0863016
1989	1081634983.3007388
1990	1625996122.9367943
1991	1607007199.0678158
1992	1396656834.6429334
1993	1288059017.540166
1994	1603235827.6431596
1995	1437943615.333147
1996	1053998777.5862281
1997	955393157.9397765
1998	853536800.918387
1999	730774840.3415471
2000	845532940.2185285
2001	578757711.9538307
2002	566342678.3748323
2003	707890248.9612895
2004	1064746166.0296714
2005	1352950903.0408924
2006	2433078618.298942
2007	3360636742.842882
2008	3230011290.1570363
2009	5916356396.731823
2010	6457271824.80384
2011	5297938527.050266
2012	7064874149.058456
2013	7191143714.5523205
2014	8323669103.503868
2015	8243753850.9595375
2016	8216879807.410064
2017	8000166908.414713
2018	9725941671.942827
2019	10445922553.118208
2020	11155846861.80787
2021	13556069334.40542
2022	12872641296.070475
2023	11520240686.162224