Year	constant 2011 international $
1990	19077305378.2884
1991	18616845101.7151
1992	16781389877.4007
1993	19478047972.9278
1994	20343859687.5867
1995	20792650375.3088
1996	21635172862.2559
1997	23570649362.9639
1998	24432636259.0721
1999	25955184832.4997
2000	27472923148.1803
2001	28532387850.2009
2002	29356476262.736
2003	31331703519.3401
2004	32704698222.5118
2005	34355561335.5791
2006	35470533452.5411
2007	37027289445.1586
2008	38287704731.8924
2009	38960343770.9683
2010	40148569369.9383
2011	41352025386.3957
2012	43255336089.0886
2013	45930728791.1744
2014	48356458473.1994
2015	50924083296.4627
2016	52627045742.2866
2017	54884160435.2612
2018	59091919727.693