Year	current US$
1988	377153789.05999994
1989	643483870.967742
1990	514620298.0837473
1991	887725952.9830476
1992	954960000
1993	915326311.2945697
1994	1001729670.2315965
1995	1154650153.7319763
1996	1362887025.07261
1997	1693911484.8488057
1998	1746568073.7863712
1999	2137000152.4222434
2000	2104654520.5133865
2001	2083883561.7975006
2002	2050010897.2514787
2003	2207137944.7320685
2004	2556745155.98725
2005	2987690324.084311
2006	3790552077.404667
2007	4451201994.74212
2008	5295608587.696612
2009	4399321517.24477
2010	5246155719.128692
2011	6530281881.708682
2012	7131020482.7003355
2013	7223534551.102626
2014	7329047070.561542
2015	7412939156.467378
2016	7298277488.557353
2017	7587959096.067007
2018	6735037967.622935
2019	6252728573.714514
2020	5961895166.573972
2021	8497455289.869494
2022	10249509399.460339
2023	10531705871.376354