Year	constant 2010 US$
2008	5440.49248403288
2009	5588.62793747678
2010	5184.08077242329
2011	5226.7236818049
2012	5391.73993754626
2013	5575.97729146583
2014	5429.7857076545
2015	5251.4701161906
2016	5235.13587181374
2017	5270.77757369103
2018	5419.68528769783