Year	current US$
1970	143150000.12516972
1971	177980004.08150256
1972	172520001.11155212
1973	245350000.9737909
1974	385440001.25303864
1975	468909995.5130369
1976	334560002.3530423
1977	411730005.3816288
1978	656830000.9127707
1979	927340000.1265107
1980	919730004.109442
1981	873729994.4907429
1982	908409999.361262
1983	836259999.0330637
1984	728979998.5252321
1985	839489994.9505926
1986	1066169994.4585564
1987	1195110001.8881261
1988	1338039998.4475222
1989	1327570002.3546815
1990	1746649993.598462
1991	1756220009.665936
1992	1591880013.8421352
1993	1528709998.0413916
1994	1485769992.1354659
1995	1671350002.3633246
1996	1843760015.5826657
1997	1114730006.8233159
1998	1182219998.4695764
1999	1150869995.0072913
2000	913950000.6698077
2001	952019994.3203478
2002	1177109999.345615
2003	2243870010.314509
2004	1706099983.336404
2005	2815670000.5307817
2006	3476540042.8455358
2007	2397200021.998956
2008	2344079990.5806785
2009	2276519992.584362
2010	2501430005.585775
2011	2825889990.7637396
2012	3173359951.7494454
2013	2791160002.695397
2014	3123200016.9306993
2015	2391650015.121327
2016	3460859989.395366
2017	4144539977.6268773
2018	4262420010.0731096
2019	4195170014.593752
2020	5195880038.974808
2021	5321420031.554998
2022	4524049962.392077