Year	constant 2015 US$
1981	30606053761.17262
1982	31213127456.797867
1983	30642950086.800034
1984	30220639255.37391
1985	34760219066.78931
1986	37338078913.217026
1987	36814371856.38467
1988	39277001671.03046
1989	41018511709.51591
1990	42258194603.724205
1991	44076819742.03642
1992	44138319119.80731
1993	45758574496.17075
1994	46877065557.82132
1995	48679219716.33381
1996	50571600415.457214
1997	52076980709.1147
1998	54680369030.09915
1999	57698897488.27722
2000	58360558016.54419
2001	60270580817.90208
2002	81229434595.08789
2003	86880452006.16718
2004	90941508938.54497
2005	97690197595.02814
2006	103427480081.95448
2007	109174032934.05266
2008	116535801286.36328
2009	122040708088.1876
2010	129262425675.59488
2011	131579510311.68626
2012	139846738468.64523
2013	143573645683.07538
2014	150461837256.34357
2015	155736061546.49023
2016	162347741688.1546
2017	170334057765.3764
2018	175868954689.25497
2019	179951745296.2062
2020	184612244158.02948
2021	190308855134.39514
2022	196754959767.59857
2023	200023801577.72485