Year	current US$
1991	6683559297.014084
1992	6188671418.756047
1993	4766152822.839156
1994	6775803570.265124
1995	8976332375.836908
1996	9682435541.79074
1997	10170404686.313004
1998	10396663908.619415
1999	9181456701.95456
2000	9090220530.933578
2001	10628305455.785526
2002	12537202874.842964
2003	13462858550.57408
2004	17384496821.722534
2005	18763447030.03595
2006	20922735880.65907
2007	23501862505.312084
2008	28020725360.5814
2009	25924237813.252987
2010	27428255954.562447
2011	29716859782.222813
2012	27134593166.07257
2013	33220063255.085022
2014	34609962637.86187
2015	31708897815.10813
2016	33101419370.937634
2017	35366860345.42753
2018	42932834157.22298
2019	45017236043.53758
2020	41287286788.34035
2021	48378444144.288284
2022	45377861514.570564
2023	55887862158.64341