Year	current US$
1980	1382860705.7574954
1981	1639095744.680851
1982	1878190957.4468086
1983	1957712765.9574468
1984	2139361968.0851064
1985	1914361702.1276596
1986	1815425531.9148936
1987	2020744680.8510637
1988	2293882978.7234044
1989	2486170212.7659574
1990	2648670212.7659574
1991	3786968085.106383
1992	3940691489.361702
1993	4084840425.5319147
1994	4073138297.87234
1995	4321276595.74468
1996	4508244680.851064
1997	4633776595.74468
1998	4814627659.574468
1999	5044148936.170213
2000	5516835106.382978
2001	5753324468.085106
2002	6021728723.404255
2003	6670319148.936171
2004	8285531914.893617
2005	8589601063.829787
2006	8778377659.574469
2007	9498803191.48936
2008	11770345744.680851
2009	12590292553.19149
2010	13913776595.74468
2011	15227154255.319149
2012	16434680851.06383
2013	18327101063.82979
2014	18904707446.80851
2015	19619707446.80851
2016	20006622340.425533
2017	20781941489.361702
2018	21560957446.80851
2019	21681436170.212765
2020	20519398670.212765
2021	21594105319.148937