Year	current US$
1974	60000
1975	150000
1976	430000
1977	830000
1978	2350000
1979	3740000
1980	5730000
1981	6300000
1982	7490000
1983	8199999.999999999
1984	8039999.999999999
1985	10440000
1986	12720000
1987	14280000
1988	14000000
1989	11290000
1990	13930000
1991	14350000
1992	18210000
1993	25300000
1994	35790000
1995	55680000
1996	67170000
1997	80160000
1998	82150000
1999	83430000
2000	98240000
2001	123550000
2002	181040000
2003	225980000
2004	270640000
2005	288190000
2006	362320000
2007	464970000
2008	526690000.00000006
2009	412380000
2010	381620000
2011	385090000
2012	334610000
2013	325400000
2014	309400000
2015	256740000
2016	238780000
2017	248180000
2018	252980000
2019	251880000
2020	253920000
2021	276130000
2022	275790000