Year	constant 2011 international $
1994	7657804993.77978
1995	8202926747.70117
1996	8302604675.50974
1997	9520366397.60863
1998	10885035088.66
1999	11786362734.7463
2000	10777899935.8598
2001	9774408670.77093
2002	8553664028.39346
2003	9752534073.47095
2004	10761245486.8997
2005	11923326787.5131
2006	11458245743.5712
2007	12213412112.9223
2008	12955901260.3513
2009	14078210744.8124
2010	15218417599.5354
2011	17107576519.9196
2012	18182656963.2368
2013	18585843282.0033
2014	18552037306.4082
2015	19188136993.2543
2016	20091598000.4251
2017	20722521750.5307
2018	20910118229.1439