Year	constant 2011 international $
1990	6562.49118410564
1991	7023.42349226218
1992	7451.51568554767
1993	8038.79847996281
1994	8592.19554367417
1995	9180.37454729551
1996	9529.54753967271
1997	9117.11867272624
1998	8243.69523110194
1999	8608.0121239421
2000	9004.11258976508
2001	9155.11065591869
2002	9563.6505697953
2003	10114.1135140829
2004	10647.24097492
2005	11007.922096353
2006	11576.0729440454
2007	12176.2851567709
2008	12296.8082606245
2009	12163.5021726088
2010	12920.6079170295
2011	13210.9788292177
2012	13797.0336806732
2013	13839.5536328014
2014	14101.2818865767
2015	14465.5291902678
2016	14965.9210620982
2017	15548.3798883258
2018	16128.5476705453