Year	current US$
1979	3478724.48
1980	29392337.8
1981	28704811.1
1982	19019723.89
1983	28000396.73
1984	14829845.43
1985	12220014.57
1986	23736240.39
1987	12777147.29
1988	12321712.49
1989	32569686.89
1990	22992322.92
1991	7337643.623
1992	25010219.57
1993	20341670.99
1994	11401200.29
1995	11239141.9243085
1996	13409964.6371449
1997	13564186.1214648
1998	22612526.2692594
1999	15404277.0364073
2000	22100034.1796201
2001	16831585.0818213
2002	29456452.6251852
2003	75414618.5995415
2004	103389306.370281
2005	77019167.2179993
2006	130058704.554612
2007	167560280.239556
2008	162670388.475588
2009	185112093.172528
2010	114971017.942742
2011	219542284.801707
2012	210407729.586195
2013	244128551.991109
2014	283337565.91589
2015	241706990.04708
2016	268951584.734338
2017	316800671.404731
2018	333554498.390558
2019	355550645.811703
2020	334097288.504642
2021	430097112.097775
2022	562660764.308562
2023	375321100.199253