Year	constant 2015 US$
2007	136917001.27720508
2008	145612503.10300317
2009	158612006.81872818
2010	174262989.80882606
2011	193867575.92791915
2012	217560279.13923925
2013	275648873.89955413
2014	312034525.06166124
2015	304233662.16951954
2016	297835079.1947807
2017	272844722.7728103
2018	274481886.2331587
2019	276952302.7219402
2020	276400014.1115214