Year	constant 2010 US$
1997	104392749.742459
1998	117738439.009202
1999	103188983.149915
2000	221172650.363489
2001	224855620.346327
2002	230147049.448728
2003	235830553.759528
2004	281389312.082117
2005	285709498.686642
2006	309451360.488048
2007	287606543.8732
2008	262095331.513934
2009	298179028.204929
2010	348722179.831571
2011	344441668.315355
2012	353371778.22288
2013	352903891.523387
2014	318975259.254035
2015	303499945.876969
2016	219203680.055401
2017	214545477.783415
2018	281397998.336367