Year	current US$
1994	16957907003.444317
1995	11285070156.121624
1996	8902350474.919226
1997	9422350727.14752
1998	7677351171.770069
1999	7090704397.253368
2000	6776238735.362988
2001	8603298077.102064
2002	10493093328.327036
2003	12436615566.483543
2004	18757613085.166386
2005	19573104061.6977
2006	21709435643.564358
2007	30054841584.158417
2008	30490385739.842697
2009	14672053439.503853
2010	19690352097.039696
2011	19849949552.203102
2012	22455343648.98438
2013	15023640310.271486
2014	13219050156.902794
2015	19532586208.97391
2016	18421059754.610073
2017	18902505964.03165
2018	17830199423.745716
2019	18904542732.88181
2020	19137997180.45322
2021	25083780133.53202
2022	26592808950.890385
2023	18073427959.41363