Year	constant 2015 US$
2006	499.18987588897295
2007	514.0812987202906
2008	521.2290634521606
2009	474.84564463888995
2010	537.9343984463338
2011	545.6229470999598
2012	584.3431413416979
2013	578.0170489529238
2014	583.5998563779824
2015	608.8353099967582
2016	638.7796201318499
2017	703.1656814726106
2018	721.4843175772327
2019	727.3744769604775
2020	620.5650227171976
2021	698.0499649006057