Year	current US$
1990	20067230267.921795
1991	14142318214.200903
1992	17855017049.876194
1993	20402575000.857544
1994	23557749834.983498
1995	29291032403.918613
1996	33202591986.79693
1997	31779479219.90246
1998	33651320273.100136
1999	33088095761.544956
2000	31156352424.505447
2001	33703257728.92309
2002	40894479299.66462
2003	49949590556.20547
2004	58347107759.59346
2005	65559326137.22691
2006	73390483102.90498
2007	87602408629.27904
2008	112198843700.39305
2009	100883911241.67236
2010	102547406175.95853
2011	113016976609.48125
2012	103225999233.81433
2013	104931159435.7179
2014	101170661206.79272
2015	88675644087.60608
2016	93005390771.245
2017	103517474939.04106
2018	118173715959.94751
2019	118232707213.64018
2020	111505864865.7382
2021	127857075859.73578
2022	135601489917.36952
2023	150986143698.5928