Year	current US$
1974	35940307.62
1975	47654621.12
1976	51023120.88
1977	60147422.79
1978	78074638.37
1979	109669143.7
1980	150431030.3
1981	153360977.2
1982	110302223.2
1983	113213974
1984	90237777.71
1985	125921798.7
1986	191625381.5
1987	173280075.1
1988	187028152.5
1989	155259277.3
1990	139672851.6
1991	112967811.6
1992	128813964.80000001
1993	117222412.1
1994	80346946.72
1995	78178306.58
1996	76009666.44
1997	73841026.31
1998	71672386.17
1999	69503746.03
2000	67335105.9
2001	49915523.53
2002	58734134.67
2003	53747390.75
2004	44417327.88
2005	56664819.5959556
2006	67996281.7810241
2007	84436174.1346809
2008	99742143.2004595
2009	96373875.8623851
2010	120462189.137398
2011	221068018.694094
2012	209980744.386756
2013	308469520.206762
2014	396308040.732104
2015	384985616.449515
2016	397373892.542271
2017	416839243.101534
2018	455650092.233639
2019	467251841.7327
2020	524608104.841885
2021	570950968.580105
2022	523912790.75047
2023	578943725.585938