Year	constant 2015 US$
1990	3968350691.017948
1991	3658820979.8895283
1992	3282875618.0434456
1993	3583196704.141998
1994	3906066314.3611107
1995	4117642844.8664794
1996	4166447035.7039948
1997	4226442974.211084
1998	4378534105.734162
1999	4568498422.186098
2000	4766232206.280006
2001	4284755939.6276135
2002	4710618178.622114
2003	4922208234.385653
2004	5290966374.907025
2005	5670544721.963652
2006	5881561673.567483
2007	6329270643.129985
2008	6632305198.616248
2009	6413104319.611812
2010	6655252289.170885
2011	6298575184.33612
2012	6374087388.419012
2013	6492719949.478201
2014	6634712236.087015
2015	6928668821.683533
2016	7197408824.252975
2017	7347630886.59517
2018	7619603196.625356
2019	7905031992.325443
2020	7606559345.950441
2021	8277756013.631982
2022	8593696874.794828
2023	8700204751.83603
