Year	current US$
1970	177059999.84778467
1971	240030000.55067232
1972	228559997.63868704
1973	200330004.06622905
1974	269220001.734793
1975	287550003.0647967
1976	308630001.34006107
1977	296469999.9988076
1978	457369999.2764739
1979	641199999.4143847
1980	611029997.9802216
1981	648860005.3042175
1982	368139996.7223406
1983	363999999.2921951
1984	344309997.81005114
1985	367110004.5274943
1986	403579998.91787803
1987	340290001.21168786
1988	494529992.1371047
1989	472530001.0461359
1990	491180004.0975213
1991	678740009.1309104
1992	653389995.770529
1993	473880000.3044307
1994	585620009.9959966
1995	689650001.3209877
1996	596540011.5102534
1997	628080010.4420629
1998	702070001.8946085
1999	804859988.491982
2000	739580005.085096
2001	737320002.5465343
2002	1113779999.714345
2003	1278340012.53359
2004	1650199999.820441
2005	1446219994.0271683
2006	1454519992.2062464
2007	1159000013.917686
2008	2307929993.739352
2009	2351360031.947493
2010	2435710056.8730383
2011	2542280011.3819556
2012	2366979968.577625
2013	3535769953.081385
2014	3131110026.1956453
2015	3211319980.7312365
2016	3177109998.5986953
2017	3022370028.9912534
2018	2829080002.0880976
2019	2989700001.7073007
2020	2488499973.125755
2021	1724300005.2459538
2022	919019995.2162808