Year	constant 2011 international $
1990	4846108063.93476
1991	5072120944.59507
1992	4694170886.59926
1993	5131966251.82564
1994	5442263249.2295
1995	5653438637.25865
1996	7284825604.3054
1997	8111231310.5197
1998	9051421091.48589
1999	9841980758.3985
2000	9810324883.65985
2001	11000941266.1166
2002	11065527553.1459
2003	12875061583.9378
2004	13677082846.0288
2005	14825644196.8991
2006	15779182772.0558
2007	17167401566.6177
2008	18469543738.0243
2009	20288492875.8383
2010	21491535831.0298
2011	23467220531.9072
2012	25387350601.9744
2013	27227774265.7121
2014	29001815753.7535
2015	30637239048.591
2016	31661272946.8809
2017	32633148299.5587
2018	34029421626.4965