Year	current US$
1970	59060283.1
1971	55757093.1
1972	65738996.4
1973	71631659.4
1974	83351673
1975	110346565
1976	119769733.2
1977	144480018.8
1978	142401319.8
1979	164645870.4
1980	189782388
1981	197636103
1982	206923980.2
1983	233550236
1984	252757745.3
1985	274770735.3
1986	274436070.6
1987	308187673.2
1988	284929286.6
1989	288255559.8
1990	284214082
1991	305544673
1992	351501534.2
1993	402238545.438023
1994	384005571.6
1995	418964030.2
1996	404094348
1997	400829757.9
1998	563004913.390253
1999	556804180.332856
2000	545359822.229023
2001	526506572.28
2002	430453637.160618
2003	425593826.919224
2004	450903751.231324
2005	477784078.545137
2006	515522811.449988
2007	597360258.255936
2008	685814869.4
2009	735834220.533335
2010	768654648.666669
2011	917622280.4
2012	1055360163.2
2013	1195392632
2014	1275886203.2
2015	1417942786.4
2016	1505575246
2017	1634917166.06204
2018	1691346917.08444
2019	1754569600
2020	1463422800
2021	1659316400