Year	constant 2015 US$
1981	2507649136.1659036
1982	2680296773.2157035
1983	2771599914.259041
1984	2941555002.4031672
1985	3099196629.8059287
1986	3127446063.2964964
1987	3461499960.3578095
1988	3619866716.1196976
1989	3599279669.3149214
1990	3698192278.132911
1991	2978528082.126912
1992	2480508937.2244
1993	3023149836.98886
1994	3314298320.5014157
1995	3665148099.3229795
1996	3921463700.631554
1997	4093884173.3139257
1998	4359317283.65308
1999	4712995966.619011
2000	5225978465.706124
2001	5463259902.141597
2002	5771243722.797197
2003	6259926205.944813
2004	6577874569.69079
2005	7388052358.144682
2006	8337041076.707117
2007	9650677079.979898
2008	11233426581.146797
2009	12882732820.921839
2010	15038967280.79622
2011	16994361320.922024
2012	18678306738.29289
2013	20368740039.178524
2014	22989291306.27378
2015	25542308013.464836
2016	28406647996.12823
2017	30546567258.820137
2018	33138363673.945415
2019	36864964790.812454
2020	38814208210.18721
2021	41247756050.17783
2022	44386285697.39415
2023	47911042459.17761