Year	constant 2010 US$
1993	9130.03421734308
1994	11965.43225219
1995	11211.8035570994
1996	10979.8956369695
1997	11170.7668529377
1998	12453.1343445649
1999	13519.7063985258
2000	14088.689050924
2001	14652.5052065666
2002	14327.2765200616
2003	16102.7270003381
2004	18271.1953023132
2005	22203.6308490392
2006	21192.2294586651
2007	16267.9830955919
2008	19736.9654298806
2009	24605.3439346324
2010	20953.3719964067
2011	22024.0064282668
2012	22377.4354554103
2013	21748.3089420373
2014	25667.4145158698
2015	25106.2577641049
2016	25623.2937818635
2017	25298.5451192425
2018	26732.7751265897