Year	constant 2011 international $
1993	24295616254.8665
1994	25357634681.9979
1995	25771415496.2055
1996	24750294414.2785
1997	23303994636.8169
1998	24702316085.9096
1999	23320485821.7133
2000	23609906477.8727
2001	23423920901.0352
2002	21097373881.1843
2003	26077450101.7672
2004	27277582372.3367
2005	29188399142.4757
2006	29220266283.259
2007	31363855061.8904
2008	31541513831.3146
2009	32246916802.5473
2010	34471431468.7806
2011	32347611441.788
2012	37574104111.7601
2013	42333162406.7404
2014	45624380867.6429
2015	48658982616.1129
2016	49834552766.0765
2017	51012366573.0758
2018	51947422563.8055