Year	current US$
2008	1186.3806873118906
2009	1258.1995065357096
2010	1317.08185108031
2011	1364.8041179645081
2012	1524.0303184783968
2013	1654.9748655895107
2014	1748.527313725403
2015	1640.0979695486756
2016	1461.8927936296045
2017	1314.7211507489283
2018	1340.77905587732
2019	1418.2721860593836
2020	1356.232246413521
2021	1393.6767687327617
2022	1468.5759602876667
2023	1463.6300347318522