Year	constant 2010 US$
1995	17952.9517429002
1996	19171.5192301162
1997	20904.9416972748
1998	21919.2505403506
1999	22397.7962277502
2000	24444.1444090515
2001	25659.5685212177
2002	25068.2987027285
2003	26464.3158606863
2004	28959.5817986104
2005	31037.4738074144
2006	32223.3678663571
2007	34817.6970732269
2008	33213.169670028
2009	30302.938362816
2010	31471.466680257
2011	32314.129849469
2012	32417.3705914801
2013	32241.4502817283
2014	32436.9423406825
2015	32162.1264302383
2016	32620.0577902952
2017	33305.2260522189
2018	34465.741605259