Year	current US$
1960	42100000
1961	38550000
1962	53100000
1963	60850000
1964	61300000
1965	66150000.00000001
1966	79750000
1967	106650000
1968	113350000
1969	122250000
1970	134000000
1971	126500000
1972	122499448.75248061
1973	162499918.75004062
1974	216500000
1975	238000000
1976	275000000
1977	355500000
1978	687028354.95
1979	792727727.4499999
1980	820726591.4
1981	711483160.2
1982	502521452.5
1983	517595203.6999999
1984	714861789.9
1985	763612638
1986	656751738.95
1987	900132196.55
1988	1034815523.5622315
1989	868351557.4137931
1990	944780090.2237353
1991	957107246.976508
1992	1071898161.1160625
1993	1380723147.2813494
1994	1458898939.2065456
1995	1409254327.4244003
1996	1355714070.945946
1997	1541231353.6121674
1998	1644261477.1048746
1999	1857437581.8815331
2000	1852172667.9300907
2001	1831493216.4704325
2002	1690904783.568933
2003	1886922062.8368535
2004	2401837479.698348
2005	2430903177.098207
2006	2983349005.7373276
2007	3979518499.5051627
2008	4663898046.092211
2009	3210403755.4709954
2010	3414308471.5084863
2011	4328529119.250678
2012	4515596918.304298
2013	4363238885.516051
2014	4402830530.937061
2015	4968650284.174084
2016	4785373937.519997
2017	5444456195.583922
2018	5956131869.132259
2019	5674320284.860718
2020	4269738349.1523695
2021	6379248067.643059
2022	7068058914.29483
2023	8327035990.720459