Year	constant 2010 US$
1995	5322.41952544427
1996	5639.23688820173
1997	6152.13698762214
1998	6659.5980950334
1999	6630.9145655744
2000	6933.58786910926
2001	7447.07745294769
2002	8014.63690893918
2003	8931.51953507369
2004	9624.01373328868
2005	10537.9103730548
2006	11500.5291506331
2007	12928.2599422279
2008	13405.1882370579
2009	11546.8222513116
2010	11984.8685698823
2011	12999.4267391649
2012	13679.1490041819
2013	14301.7297553804
2014	14935.5350183879
2015	15381.3487334195
2016	15944.6254140906
2017	16838.5432003613
2018	17669.6589849183