Year	constant 2015 US$
1995	25564232399.871178
1996	27500376169.50989
1997	29536302743.94267
1998	30617311626.175705
1999	29438993442.558865
2000	29774684033.03074
2001	30735903678.41708
2002	33650497562.16474
2003	34344689632.184566
2004	37047160931.47998
2005	40204506869.760185
2006	42240519694.520164
2007	44629162481.69296
2008	45660950139.529785
2009	41314474781.80877
2010	41491217637.24418
2011	40777709093.26827
2012	39356674308.64849
2013	39792860903.10459
2014	39623105745.11222
2015	42022305888.2797
2016	43138287967.49097
2017	45835452151.01108
2018	47706177827.39723
2019	49532110450.07837
2020	44289715368.95438
2021	49127682262.36779