Year	constant 2021 US$
1961	34490001.6784668
1966	26930000.3051758
1967	7639999.8664856
1969	59999.9986588955
1975	34180000.3051758
1976	92610000.6103516
1977	89419998.1689453
1978	107690002.441406
1979	83589996.3378906
1980	149089996.33789098
1981	129399993.896484
1982	138210006.71386698
1983	156619995.117188
1984	183149993.89648402
1985	187669998.168945
1986	241850006.10351598
1987	164100006.10351598
1988	146740005.493164
1989	163449996.94824198
1990	178259994.506836
1991	166770004.272461
1992	171429992.67578098
1993	179860000.61035198
1994	184919998.168945
1995	158429992.67578098
1996	164119995.117188
1997	173589996.33789098
1998	204800003.05175802
1999	212949996.94824198
2000	160949996.94824198
2001	136710006.71386698
2002	150619995.117188
2003	201179992.67578098
2004	183470001.220703
2005	203570007.32421902
2006	166440002.44140598
2007	155830001.831055
2008	206720001.220703
2009	204149993.89648402
2010	344529998.779297
2011	243919998.168945
2012	258869995.117188
2013	248500000
2014	234270004.272461
2015	178000000
2016	132399993.896484
2017	137740005.493164
2018	90000000
2019	166929992.67578098
2020	168250000
2021	145240005.493164
2022	86559997.55859381