Year	constant 2011 international $
2000	15961812367.3374
2001	16686536823.9174
2002	17384587291.421
2003	18149946746.4275
2004	19053625959.2221
2005	20223368165.3579
2006	21980784252.9538
2007	23315308675.5094
2008	24012957235.168
2009	24029879670.7439
2010	24906631057.9284
2011	25803372072.1369
2012	26906418729.0594
2013	27920178385.2748
2014	28633649422.1969
2015	29750826312.8252
2016	30940706217.2963
2017	32391170476.5908
2018	33811470494.4715