Year	constant 2010 US$
1995	22923.6288062527
1996	23600.949640911
1997	24240.5564715254
1998	24524.5252761372
1999	24513.0193907802
2000	24167.4756473078
2001	21078.2946231612
2002	20806.3492659477
2003	22426.5072644106
2004	21405.887019999
2005	16315.031537924
2006	19513.6471303949
2007	19955.66640806
2008	20634.6037738358
2009	18482.7222001949
2010	18363.3366126947
2011	18116.0443630666
2012	17089.7922739706
2013	17079.8151544232
2014	16845.0158341253
2015	16421.7141888819
2016	16808.4667996104
2017	16848.2586336328