Year	current US$
1970	550000.0119
1971	3589728.4936
1972	4658345.5766
1973	5640691.4593
1974	3953010.9018999995
1975	283535710.5109999
1976	416482754.1029999
1977	489550195.24459994
1978	683935404.9448999
1979	626241460.6637
1980	680578389.579
1981	668589447.1846
1982	716696258.8377
1983	695619236.6275
1984	751661940.5312
1985	1138445552.117
1986	1143455667.4225
1987	1071230371.6188998
1988	1082544594.3049
1989	1128940730.6810005
1990	850992805.6285844
1991	879999728.6144737
1992	885394121.7805372
1993	967025202.6161997
1994	995694335.9650174
1995	1192116335.2673092
1996	1206836019.068962
1997	1304655292.3177261
1998	1377695714.9028184
1999	1537518744.0750597
2000	1721771484.0167747
2001	2077793040.0550363
2002	1898369447.18053
2003	2420502973.0941677
2004	3114239760.7474003
2005	3307671485.559711
2006	3654886643.2074714
2007	4164564515.5843043
2008	6159907977.753473
2009	6140366667.421741
2010	6126425550.151552
2011	17012279430.795227
2012	17041436952.463066
2013	17706989461.660088
2014	18764964828.795967
2015	18790729674.29317
2016	18909174444.783016
2017	20566471491.167023
2018	20576841208.873943
2019	20763805458.025543
2020	18766802244.36373
2021	20116305179.542286
2022	20811147776.134235