Year	constant 2015 US$
1981	528624355.6426288
1982	560877058.2283951
1983	605445299.7704226
1984	605798914.9558369
1985	587668763.7172666
1986	644929413.150738
1987	693581937.8627597
1988	692081467.4024909
1989	680273966.8712156
1990	682199927.0133387
1991	443971961.6282103
1992	364649280.784835
1993	473031528.9101872
1994	526213427.71194005
1995	572969470.1224753
1996	591452803.7580225
1997	608990850.9729744
1998	611328558.8727905
1999	664549991.1960498
2000	708789094.8004761
2001	735776797.6242056
2002	749088730.5868427
2003	758123301.8494564
2004	813203663.742357
2005	919204145.5016497
2006	1013887043.1231637
2007	1114568607.0934222
2008	1217798204.6631896
2009	1322833110.228041
2010	1444635498.2196085
2011	1578096604.1697047
2012	1764382573.1521573
2013	2063155655.5818331
2014	2406403569.689372
2015	2844913926.9378443
2016	3496417119.508932
2017	4358466691.956492
2018	4655772563.993505
2019	5014135219.56548
2020	5390816222.627805
2021	5665734313.541082
2022	5938605601.529863
2023	6351598874.747202