Year	constant 2015 US$
1995	39059617137.531784
1996	38620809394.0738
1997	38604663152.530975
1998	35736328032.29355
1999	34134296131.998432
2000	32316400969.0565
2001	35649147543.04433
2002	35136343269.05506
2003	35782008905.45839
2004	41168829793.81204
2005	39011419812.21466
2006	38244126074.46616
2007	34223034713.33554
2008	38795704564.16774
2009	39911399410.510345
2010	36168682823.92853
2011	38158515718.99876
2012	33861730815.39643
2013	37729458824.916
2014	40210389804.01158
2015	38166630607.07442
2016	39386016322.76578
2017	40093359650.05686
2018	40863053230.95427
2019	40541779764.872955
2020	40989680530.94014
2021	40513102856.39742
2022	36187576994.84555
2023	39421304694.186485