Year	current US$
1989	28178307204.21241
1990	33069928389.324238
1991	37305756945.19999
1992	41388409097.79045
1993	39043420468.4794
1994	41059400036.937904
1995	47865471929.74075
1996	50549071397.75747
1997	50823410549.77426
1998	52784715519.863174
1999	52749871035.75631
2000	54208984117.63739
2001	53972274440.14015
2002	60068779777.02152
2003	73889909142.92627
2004	88418430715.4576
2005	99744324117.58025
2006	112561505766.47777
2007	135584974247.63847
2008	148217980717.6496
2009	125743701047.7518
2010	133458887207.86739
2011	147097117466.12158
2012	148716836111.52783
2013	153637957834.5444
2014	155423209047.72116
2015	143042291470.89023
2016	152238649508.8653
2017	169666616185.0453
2018	186233919944.51028
2019	184614933598.65207
2020	177279030795.37137
2021	194343199331.53455
2022	206315080615.84607
2023	224076427696.71155