Year	constant 2015 US$
1990	25743561593.2615
1991	25795047991.977512
1992	14703177420.34821
1993	11674323562.154352
1994	10343449582.628374
1995	7095606723.069009
1996	7861931707.442382
1997	9945343733.370993
1998	9756383314.555426
1999	9736869969.490606
2000	11041610894.16662
2001	12452384884.677166
2002	13723144919.811468
2003	15562113686.75623
2004	18573478245.94218
2005	18369128670.133694
2006	22334702912.373962
2007	23970901174.46125
2008	27926154995.511868
2009	25378570130.59855
2010	28481200722.99385
2011	33750223748.61363
2012	37429012014.02886
2013	35856994998.68544
2014	36576613135.41498
2015	32689333598.72761
2016	32231693571.136765
2017	35824167787.724915
2018	44873201123.983475
2019	47163529820.205574
2020	43696640541.421425
2021	46207275018.36749
2022	37820276517.37147
2023	46358455869.34257