Year	constant 2011 international $
1990	13031381477.7942
1991	13127748700.5378
1992	14361756949.2529
1993	14462289318.0039
1994	15315564199.8931
1995	16612515038.9304
1996	16819918781.0366
1997	17264124251.7443
1998	18319114066.5631
1999	19234693003.4307
2000	20382103558.1438
2001	21187713328.8701
2002	21976518003.697
2003	22553021701.1859
2004	23686615056.4952
2005	24836124426.3076
2006	26006855148.7908
2007	27332694137.1556
2008	28329456408.0733
2009	27758549550.8491
2010	28129238192.6613
2011	28242719959.073
2012	27429866361.2331
2013	25839124842.1037
2014	25500253654.193
2015	26000646154.122
2016	27251846030.5173
2017	28469698067.0013
2018	29573179255.6772