Year	current US$
1970	2790000.0158697343
1971	6539999.984204769
1972	11289999.75323677
1973	8869999.997317787
1974	10689999.9063462
1975	16880000.07346273
1976	13729999.924078587
1977	24060000.332072392
1978	52510000.2940744
1979	40539999.673143014
1980	69350000.14491372
1981	63049999.75115062
1982	70370000.36239624
1983	83760000.41328372
1984	84400001.00433826
1985	85850000.11883675
1986	137979999.93525445
1987	146309998.74137345
1988	168890000.7624179
1989	173809997.4263459
1990	226769999.6009471
1991	228610000.1968442
1992	230029998.97673708
1993	194909999.48233375
1994	230810000.7250905
1995	239800001.4536082
1996	208730000.5555151
1997	175490001.38789418
1998	176699999.46653837
1999	173420000.30167398
2000	163020000.80235302
2001	163020000.90293592
2002	189079998.8172948
2003	252559999.23497432
2004	252719997.616485
2005	244530000.0570714
2006	248490001.00605196
2007	295140000.3675371
2008	290619999.55773365
2009	471000001.1362133
2010	364790002.9681624
2011	529659996.80757505
2012	473550001.87084097
2013	530979996.74081814
2014	579150000.0711533
2015	617710001.7555057
2016	573560005.9889258
2017	573829996.2244928
2018	590469999.5853004
2019	598629997.268319
2020	639120003.5233049
2021	715690008.7650868
2022	649959998.6597896