Year	constant 2010 US$
1995	12498.9775113979
1996	13315.4340956727
1997	13422.4962723982
1998	13725.3512119181
1999	14400.9611737959
2000	14727.0661405666
2001	15022.5887180552
2002	16524.0279069386
2003	16382.6065932977
2004	19597.7532862136
2005	18499.0644152978
2006	18904.8770509284
2007	19738.4416480161
2008	22390.2078112414
2009	22737.0662077104
2010	21497.8818235106
2011	23021.2225104709
2012	21921.3763889044
2013	23486.5106868996
2014	25135.732958258
2015	25825.2135166771
2016	26557.8790515101
2017	32029.1810402958
2018	32471.6264273643