Year	current US$
1990	5095853767.2759695
1991	4370990967.404111
1992	3587916666.6666665
1993	3253996447.6021314
1994	4139835295.9657784
1995	4584710418.633931
1996	4311709373.986377
1997	4515104758.131346
1998	4958774525.157793
1999	6010823826.505722
2000	6280609819.4642515
2001	6381106638.876644
2002	6828893165.207652
2003	9274920203.481499
2004	11041815975.146898
2005	15988966428.054405
2006	19430163870.696262
2007	26870173280.016403
2008	34035940096.662857
2009	28038401941.41326
2010	25519934547.97193
2011	25935738540.34366
2012	24678622916.786808
2013	27061792706.969555
2014	28809005202.77382
2015	24753056107.759335
2016	28219003676.355564
2017	33096400930.587894
2018	40537880773.296844
2019	44030061881.69918
2020	46921742548.05381
2021	51105333912.441956
2022	49241981667.81309
2023	59387862623.78944