Year	current US$
1970	74952.6725342793
1971	81981334.9979212
1972	95806282.1848604
1973	150444036.918225
1974	658563046.681196
1975	541586698.443667
1976	608843267.0792
1977	785925356.696074
1978	768745769.608315
1979	1818608805.16029
1980	2003987648.42649
1981	1945736854.57114
1982	1169391331.71382
1983	1042036597.77679
1984	1210876395.92357
1985	1090835135.17554
1986	730920915.828257
1987	1029711248.4188
1988	875580913.979682
1989	1224932320.33064
1990	1598751389.7495
1991	981615773.048725
1992	1039734283.45933
1993	1005326737.44494
1994	897808765.280025
1995	948284846.324701
1996	1190512942.31417
1997	1137840012.06807
1998	769847374.702894
1999	1106005417.09873
2000	1863909892.02555
2001	1560519460.35777
2002	1588533871.77554
2003	1871980726.54056
2004	2406654187.92647
2005	3538653600.73044
2006	4171781249.42339
2007	4579405246.03782
2008	6072439660.49526
2009	3869191371.3042
2010	4990541163.46857
2011	7415376909.23673
2012	6899584985.42232
2013	7654538733.71982
2014	7188228148.50004
2015	3733730269.05173
2016	2958946608.81349
2017	3763790632.88739
2018	5273226072.6776
2019	5034599198.74213
2020	3626578988.57657
2021	6226312716.54771