Year	current US$
1970	17909999.720752243
1971	15410000.333562493
1972	21550000.220537186
1973	24930000.49702823
1974	23509999.670088287
1975	26239999.84189868
1976	24960000.053048134
1977	26039999.984204773
1978	23899999.659508463
1979	40850000.36470591
1980	34210000.00461937
1981	23220000.58740377
1982	42980000.31337143
1983	40639999.90187586
1984	59579999.78959558
1985	76349999.53955404
1986	63609999.60079786
1987	82809999.49201946
1988	95959999.48680404
1989	97519999.98837715
1990	104179998.9454447
1991	104320000.39517877
1992	83439999.89330772
1993	80449999.20576812
1994	55399999.35217202
1995	83410000.17523767
1996	21100000.122562055
1997	38969999.90567566
1998	45739999.99836087
1999	47290000.46662988
2000	35229999.84771013
2001	25679999.664425842
2002	18589999.534189697
2003	19649999.909102924
2004	18769999.84122814
2005	19060000.259429205
2006	16469999.849796295
2007	16319999.903440475
2008	16989999.78415668
2009	6710000.036284324
2010	7559999.920427797
2011	13459999.784827232
2012	6373562.853783371
2013	4827949.811704451
2014	14312573.824077828
2015	9550715.100020166
2016	18445315.73727727
2017	13355600.239010522
2018	13884933.985769745
2019	21271558.582782745
2020	21064043.11396183
2021	15649669.9557174
2022	35240976.39322282