Year	current US$
1977	1000000
1978	1400000
1979	24500000
1980	40300000
1981	49800000
1982	45400000
1983	36900000
1984	33200000
1985	23700000
1986	20049000
1987	25090000
1988	27260000
1989	28088000
1990	37127000
1991	41340000
1992	48600000
1993	56105000
1994	61684171.2828161
1995	75410111.2086241
1996	86389871.83298749
1997	92837730.2140048
1998	97560160.6117572
1999	106715540.566897
2000	107915789.927496
2001	108445024.09633
2002	109878585.75649099
2003	118788077.40320799
2004	155128067.397635
2005	210170530.05665898
2006	226361721.43409902
2007	326382287.821277
2008	419466517.407525
2009	394148448.603845
2010	445916473.595409
2011	575592082.226352
2012	567283123.074347
2013	691679398.090829
2014	788005559.05218
2015	866972281.660023
2016	1093942512.1041298
2017	1264433230.6178477
2018	1327722616.85206
2019	1326312737.89435
2020	727329907.1921397
2021	1078082840.11984
2022	1573500929.614762