Year	current US$
1970	4800000.036135316
1971	4909999.988973137
1972	18930000.353604604
1973	16259999.66450036
1974	10120000.161230566
1975	13569999.950006608
1976	16089999.893680204
1977	15029999.900609251
1978	31680000.035092246
1979	75070001.03406605
1980	189599997.19262123
1981	163140003.08513647
1982	112569998.31087893
1983	141799997.91271973
1984	162789998.65800148
1985	209879997.13793388
1986	187090002.64480707
1987	168000002.53319734
1988	242040002.6515127
1989	219879995.72418633
1990	221669996.24669555
1991	280339997.80379236
1992	280079999.67783684
1993	309199998.61717224
1994	505470000.7848441
1995	426849999.7835612
1996	144509999.3646145
1997	136530000.3830344
1998	116699998.69540338
1999	117219999.83862048
2000	186499999.62747097
2001	208679997.53355977
2002	262329997.78538945
2003	217880002.10188326
2004	176590000.84735453
2005	48630000.021308675
2006	26729999.75830317
2007	39409999.802708596
2008	51429999.55639244
2009	73389998.70792027
2010	90989998.63676727
2011	94370001.31607051
2012	166782801.1363744
2013	111915985.50323395
2014	3656099.889427423
2015	101603102.56015512
2016	137111533.13517576
2017	189219638.28802127
2018	101412108.90561347
2019	170172280.09179232
2020	154975674.79652935
2021	318537857.94973373
2022	180766799.79264736