Year	current US$
1970	676629999.6376039
1971	582519995.9278104
1972	601580001.7118461
1973	632199999.6900558
1974	709089991.2118914
1975	866939996.6001518
1976	823340004.4441218
1977	786509995.4605101
1978	1029070001.6021731
1979	1296930018.424988
1980	1545130003.452301
1981	1766020014.822483
1982	1929520009.4580648
1983	2090209994.55452
1984	2261750011.444093
1985	2612830019.235612
1986	2920349994.1825876
1987	3511069991.588594
1988	3563070024.9671946
1989	3956149994.8501587
1990	4388590013.027192
1991	5116439982.771875
1992	4642930070.877075
1993	4607680007.100104
1994	4853579925.537111
1995	5377200012.207032
1996	5029239948.31741
1997	4136549930.5725117
1998	3983749997.615816
1999	4423530017.137527
2000	3557359996.5572352
2001	4843870046.138762
2002	4271410040.8554087
2003	5012940050.691367
2004	5287510005.757216
2005	5338370005.130771
2006	6036039890.527731
2007	5455180032.253267
2008	6881449916.362762
2009	7032750074.386604
2010	8078940149.307256
2011	8351769999.504092
2012	7673029986.143116
2013	7593969978.213308
2014	7534190109.9681835
2015	7426790017.366408
2016	6981720130.622389
2017	6371290007.948878
2018	8018029971.1227455
2019	6731810027.1224985
2020	9804980072.021492
2021	9635000056.14758