Year	constant 2015 US$
2008	744.6372979811001
2009	754.0528017427647
2010	766.9275468151193
2011	783.2457130832413
2012	803.5792547026452
2013	828.1187599214031
2014	873.96185622166
2015	897.4494359242889
2016	916.4942824585825
2017	935.1063138985497
2018	955.6716466254794
2019	974.2209786856864
2020	959.0507664547476
2021	974.5126937755349
2022	990.9667700416346