Year	constant 2015 US$
1995	17892089783.770412
1996	18345143463.565525
1997	19091211191.288048
1998	19629552086.097576
1999	17785426684.743813
2000	18686251550.331226
2001	18977490383.937164
2002	20721380687.735687
2003	21279692258.418636
2004	23980630908.01357
2005	24547325350.25619
2006	27133662932.913525
2007	29217498262.70541
2008	30530278929.80907
2009	29508862453.552094
2010	29328841820.608448
2011	29742879320.806614
2012	29236904120.132603
2013	28743152271.004627
2014	28714732802.185062
2015	28531959764.335407
2016	29071434364.54398
2017	29713580688.79256
2018	30639057007.111156
2019	31763150126.00929
2020	31168877295.743534
2021	33606364141.449303
2022	34935744457.90045
2023	35232538207.48671