Year	constant 2015 US$
2007	1183511270.470667
2008	1230542265.446214
2009	1258371964.6674917
2010	1229256156.1217854
2011	1273881992.7522326
2012	1289311189.324171
2013	1322845630.154254
2014	1317644627.1119707
2015	1358100076.39743
2016	1429001202.2185102
2017	1457836356.5830748
2018	1576461164.5609593
2019	1678745821.3937564
2020	1407062405.2568488
2021	1509549869.8036535