Year	current US$
1989	2489030212.0642896
1990	2836016495.5854573
1991	3748853488.5324388
1992	4207000159.97291
1993	5334999955.149998
1994	5989999913.100411
1995	7304200109.78167
1996	7563885155.911925
1997	7490743747.97012
1998	7063369152.553999
1999	6391244717.623308
2000	6202985074.626865
2001	7051409618.573797
2002	6692537313.432836
2003	7501824212.271974
2004	11832129864.676617
2005	12068415010.281923
2006	12218142061.691542
2007	15101534372.139303
2008	19824163540.298508
2009	20249317982.089554
2010	23094612059.03814
2011	26262779872.636814
2012	26294002587.06468
2013	27906587980.099503
2014	26962653976.119404
2015	24315275422.22222
2016	23526463867.993366
2017	24672982325.70481
2018	26079751235.157547
2019	21820628748.39125
2020	10705132083.24295
2021	12214357413.86644
2022	16806427844.300413
2023	14788907442.792562