Year	current US$
1988	640883.977900552
1989	1424494.12833892
1990	1775549.36175208
1991	28646571.4132318
1992	40306765.4913748
1993	62956519.3506184
1994	60925870.261612
1995	92113357.0983239
1996	169497945.581996
1997	112179468.974938
1998	112214363.038438
1999	101187651.937998
2000	139659833.460443
2001	136835241.427009
2002	201633549.531476
2003	234395183.606116
2004	244913224.01003
2005	252299748.710496
2006	349506280.421735
2007	555778196.307765
2008	653434745.3239
2009	712950622.345605
2010	806912868.678393
2011	755810133.837867
2012	818135446.167628
2013	740595667.718888
2014	889717355.693504
2015	1057561063.86709
2016	883575618.890996
2017	1088755631.60462
2018	944141406.569877
2019	1067769845.40873
2020	1894600080.96868
2021	1950518267.75273
2022	1576038534.74606
2023	1769745792.21118