Year	constant 2011 international $
1990	11214.2058665949
1991	11099.4593820883
1992	11481.8311587949
1993	12174.008353713
1994	11316.8836094491
1995	12089.3134215102
1996	12803.5961258123
1997	13562.2538021304
1998	13718.99578073
1999	13009.6343083359
2000	13656.4781984393
2001	12517.9113641102
2002	13207.6302575358
2003	13765.9599627397
2004	14945.3217406254
2005	16129.3268975591
2006	17061.8475262123
2007	17734.1472482447
2008	17661.5154268088
2009	16584.177195298
2010	17803.9229688358
2011	19480.5708875462
2012	20106.0423158977
2013	21413.5312684588
2014	22146.2594480593
2015	23047.6804055841
2016	23408.9133472708
2017	24701.5965376839
2018	24905.3806642036