Year	constant 2015 US$
1970	4488448905017.395
1971	4645120347603.224
1972	4869645564382.711
1973	5139648014885.649
1974	5155295615760.419
1975	5123714777308.896
1976	5359370450131.409
1977	5498031998719.879
1978	5709813008374.905
1979	5893868677773.32
1980	5886537518207.879
1981	5808488360137.88
1982	5851313325395.445
1983	5953652560813.148
1984	6104386948235.14
1985	6260419138198.677
1986	6597697563101.603
1987	6801041424072.867
1988	7098833890312.512
1989	7350964677432.005
1990	7606409897041.035
1991	7754189432405.3125
1992	7859532032287.864
1993	7788799058685.506
1994	7995034326713.818
1995	8221248656846.281
1996	8380204811497.253
1997	8602865395789.28
1998	8900950318362.91
1999	9170053882400.77
2000	9405455644001.81
2001	9590738084947.947
2002	9679729741691.686
2003	9781210321102.62
2004	10058790796916.074
2005	10229275827391.812
2006	10573790996241.873
2007	10895435550367.4
2008	10816073847842.352
2009	10411571099116.197
2010	10606050655147.506
2011	10727133827476.553
2012	10615589604870.254
2013	10652813570823.12
2014	10869214953926.6
2015	11164241687290.3
2016	11468092690713.951
2017	11769598574720.52
2018	12000940181878.459
2019	12202448008166.637
2020	11369388341123.496
2021	11989553037576.52