Year	current US$
1980	2864420270.6288137
1981	3440957446.808511
1982	3634308510.638298
1983	3746276595.744681
1984	3793882978.7234044
1985	3281648936.1702127
1986	2655319148.93617
1987	2995744414.893617
1988	3271276595.744681
1989	3503191489.361702
1990	4451329787.234042
1991	4807446808.510638
1992	4783244680.851064
1993	5006382978.723404
1994	5325000265.957447
1995	5790573404.25532
1996	6076647606.382978
1997	6113085372.3404255
1998	6021789095.74468
1999	6350622872.3404255
2000	8839275265.957447
2001	8654625797.872341
2002	9068566223.404255
2003	10581836436.170212
2004	12575387234.042553
2005	15556372074.468084
2006	18119833244.68085
2007	21431313829.787235
2008	24787226861.70213
2009	20538353191.48936
2010	23340257978.723404
2011	25012234042.553192
2012	29741912500
2013	31343603989.361702
2014	31755112765.957447
2015	29314738297.87234
2016	30439494680.851063
2017	33484122340.425533
2018	35726063829.78723
2019	36392679787.23404
2020	32162765159.574467
2021	36760670212.76596
2022	42420297872.34042
2023	40659787234.04256