Year	constant 2010 US$
2000	554.162144128061
2001	532.824012038526
2002	530.155157763575
2003	357.884670644011
2004	398.509499000179
2005	407.691377057449
2006	424.608137184301
2007	452.994466403323
2008	465.504410100926
2009	460.143915247975
2010	467.343491574659
2011	501.608161506337
2012	507.705217450394
2013	538.228104309747
2014	528.248497936945
2015	521.342411183522
2016	500.003813158573
2017	497.306358671167
2018	476.753308612171