Year	current US$
1990	3782351694.915254
1991	3028373913.043478
1992	2703204599.056604
1993	2765803174.6031747
1994	3352863255.8139534
1995	4937907399.9191265
1996	5133213526.912182
1997	5227201380.552221
1998	5787580784.766301
1999	6287861568.88596
2000	5562464485.578993
2001	5501146100.691017
2002	5772111720.698255
2003	7417901191.715839
2004	8953188839.063278
2005	9628348464.121378
2006	10954231589.51198
2007	13771903665.561613
2008	16423118874.778902
2009	12202307019.50546
2010	10163061955.45002
2011	10288105525.03893
2012	8864553616.24219
2013	9505733929.606302
2014	9553251797.001535
2015	8041528638.184761
2016	7780062236.643988
2017	8901704662.237663
2018	10474231567.122345
2019	10651461879.482336
2020	10157275869.82104
2021	12515282499.635458
2022	12983520008.858027
2023	15347320375.731644