Year	current US$
1970	18090000.055730343
1971	35129999.89837407
1972	65230000.266805254
1973	106769999.87661842
1974	142329999.80077147
1975	179000000.43585905
1976	146259998.6214192
1977	140469999.05817205
1978	209409999.36498696
1979	197360000.0217557
1980	195470000.06772587
1981	203349999.71278018
1982	287640003.4129621
1983	276300002.1819025
1984	303829997.939989
1985	328860002.44878227
1986	264999997.03466886
1987	390989996.7275559
1988	417390003.3980611
1989	363289999.90783644
1990	390680003.92057014
1991	402570004.2955576
1992	412390001.46649796
1993	270889998.525381
1994	261269999.89897016
1995	252220002.0849706
1996	232249999.4188548
1997	275680001.8362701
1998	219800002.5600194
1999	208300000.704825
2000	194679997.44787824
2001	198019999.9380856
2002	224170003.24092802
2003	486559997.63496244
2004	547809997.5585936
2005	713129997.983575
2006	741280004.5758486
2007	1166230012.02941
2008	1217000017.6038604
2009	1153800008.237362
2010	1725699998.332189
2011	1391119983.5538857
2012	1266370001.1353946
2013	1194129992.8594382
2014	1039279999.9061972
2015	997699999.8912224
2016	829580005.9977919
2017	957319998.7951661
2018	1068949995.3445048
2019	947219999.3953109
2020	949530008.1446767
2021	1216879994.5339568
2022	1349089997.4405763