Year	constant 2010 US$
2000	17928.7222978346
2001	18440.4025623766
2002	18777.5747780522
2003	18934.9618752144
2004	18948.8856998393
2005	18972.8209122118
2006	19163.6112177421
2007	19948.674336559
2008	20617.5280171674
2009	19092.9878979252
2010	19982.1082068604
2011	20588.9394550709
2012	20780.2565819089
2013	21346.6771330913
2014	22816.1638687742
2015	24287.6304362051
2016	24271.705783869
2017	24898.1408847091
2018	25890.9240731951