Year	current US$
1969	11700000
1970	24300000
1971	18500000
1972	26000000
1973	29800000
1974	29509000
1975	31917000
1976	62839000
1977	89008000
1978	69362000
1979	104002000
1980	63506000
1981	71369000
1982	87584000
1983	77133000
1984	98807000
1985	111739000
1986	169100000
1987	87490000
1988	101220000
1989	77548739.5
1990	74646398.05
1991	91990867.48
1992	73713890.68
1993	61863003.54
1994	118870034.1
1995	104030509.60000001
1996	37304787.28
1997	87311273.56
1998	63950390.74
1999	54958411.89
2000	46468349
2001	34461221
2002	28380062
2003	35389524
2004	45932411
2005	58591109
2006	57988585
2007	56542859
2008	65699341.00000001
2009	68356526
2010	92331390
2011	113340666
2012	117617291
2013	205748674
2014	141499047
2015	113735969
2016	123028770
2017	149406419
2018	169279447
2019	180681077
2020	172939532