Year	constant 2015 US$
1994	2881611180.766221
1995	3177168296.267645
1996	3368162913.0349073
1997	3592337985.102196
1998	3744934421.0669045
1999	3864099556.512098
2000	4088987351.667005
2001	4476219612.802955
2002	5092357681.5391865
2003	5803461217.332566
2004	6460925687.235367
2005	7363476771.98971
2006	8376427077.966367
2007	9594360427.530233
2008	10313163849.402885
2009	8681469013.230597
2010	8939510150.666384
2011	9237399516.148405
2012	9958810854.501348
2013	10486189417.097683
2014	10694904823.632935
2015	10981745035.977455
2016	10830558436.7208
2017	11774009719.749094
2018	12171108058.11851
2019	13058359835.478758
2020	11790227925.642834
2021	12302204321.090424
2022	13651917995.69633
2023	15093641693.933279