Year	constant 2015 US$
1993	489.1551949741688
1994	462.0209049475696
1995	477.6114191210543
1996	491.2914905283454
1997	487.04396580605794
1998	510.03536903093806
1999	509.4977776995547
2000	505.49892033822454
2001	519.8821255049276
2002	522.2405093148399
2003	535.4483113503002
2004	550.6072133894247
2005	566.56444465169
2006	589.8352139111652
2007	610.0402788106111
2008	620.5420910660787
2009	638.8413756443738
2010	656.2209368891819
2011	648.4590060462118
2012	663.2426138791473
2013	683.0788546605434
2014	698.5475718515345
2015	705.6957954846846
2016	713.2544660899472
2017	723.7901954184234
2018	736.939781833769
2019	751.3578870559982
2020	736.5281949602181
2021	755.9966437522027
2022	774.8104222947609
2023	769.6988941415322