Year	current US$
1980	646.3605345436362
1981	580.9410198655731
1982	530.2043594575321
1983	538.0568569267775
1984	505.1009277289429
1985	523.6951852232951
1986	723.1827600515378
1987	850.4331274331867
1988	873.6247033016782
1989	813.8460196910099
1990	996.5280531010801
1991	958.9211500987642
1992	1009.7102618180106
1993	977.4743806021193
1994	674.1373078699314
1995	823.6766103220876
1996	801.2612199603354
1997	721.6273006427153
1998	717.3181317316796
1999	726.4888885317326
2000	654.1804307502305
2001	691.0419780106953
2002	761.9478881818138
2003	959.2289876222355
2004	1090.4271686947254
2005	1103.1954167212093
2006	1155.0856746669617
2007	1289.7948495087148
2008	1454.6509094409944
2009	1409.1066715214479
2010	1384.0632825747905
2011	1526.8326394268117
2012	1483.9515579125912
2013	1595.9898180812168
2014	1608.6878767875805
2015	1322.9367760528767
2016	1357.2662297961572
2017	1414.5866899243117
2018	1531.337810117626
2019	1510.7973237214014
2020	1519.5867806517683
2021	1577.4708412229163
2022	1484.8924653204153
2023	1587.161895556872