Year	constant 2010 US$
1999	5387.32015793375
2000	5107.61971692719
2001	5509.92063717094
2002	5223.77537235286
2003	5913.79395755957
2004	6089.37617268128
2005	6386.48365283326
2006	7085.33137756273
2007	7920.82106712487
2008	7934.70250887211
2009	10340.5422309212
2010	11555.2395508795
2011	13897.9512441873
2012	15576.9304229246
2013	16885.787018282
2014	19022.5358969058
2015	21267.8981766955
2016	21917.7271829375
2017	19833.326212799