Year	constant 2015 US$
1989	5438087680.030115
1990	5327068270.290039
1991	5096568067.227311
1992	4842091160.897203
1993	4827152088.501826
1994	4932980709.732588
1995	5293572835.1791315
1996	5634356439.822154
1997	6161990324.419621
1998	6879163950.687187
1999	7437937689.684459
2000	7609295098.960209
2001	7664733119.756008
2002	7943261650.409223
2003	7884574550.368043
2004	7761284116.435886
2005	8390528929.453852
2006	8637585035.774952
2007	8743184960.621815
2008	8430235587.455604
2009	7585998715.833633
2010	7664199688.835127
2011	7496993341.998251
2012	7181822956.452361
2013	7048077276.470892
2014	7424291556.853864
2015	7536700000
2016	7650466267.308386
2017	8140834764.760386
2018	8179920703.145107
2019	7326819179.492458
2020	5994793676.326761
2021	7337972735.110928
2022	7512938077.160653
2023	8522893062.384116