Year	current US$
1961	810000.002384186
1966	1149999.97615814
1967	509999.99046325695
1969	70000.00029802327
1971	109999.999403954
1973	9999.99977648258
1974	50000.0007450581
1975	10960000.244900584
1976	12939999.911934135
1977	33560000.02659857
1978	43420000.22530556
1979	44809999.609366015
1980	45029999.87639487
1981	47420000.147074446
1982	44270000.63657762
1983	36559999.4584918
1984	39430000.31262635
1985	30760000.02212822
1986	46720000.095665485
1987	58849999.5209277
1988	58460000.509396166
1989	77090001.89788643
1990	79880000.3174693
1991	69389999.49954447
1992	64389999.76404014
1993	61299999.6952713
1994	148420002.56478786
1995	89620000.00104298
1996	138499999.77834517
1997	84409999.49909744
1998	73870000.36612149
1999	48340000.36492944
2000	58950000.57108707
2001	48370000.71816149
2002	48100000.258535184
2003	117339999.15793534
2004	42709999.9897182
2005	43100000.58822332
2006	72650000.37848946
2007	88590000.77098611
2008	101599999.59915878
2009	111749999.59394346
2010	70880000.58941545
2011	72919999.84532599
2012	51879999.61338941
2013	60259999.3739277
2014	56789999.4049221
2015	53990000.9278208
2016	154789999.0212168
2017	52529999.61376186
2018	52099999.15026127
2019	59290000.44800336
2020	49760000.26985999
2021	60469999.76783989
2022	61660000.21249057