Year	current US$
2007	203000000
2008	203000000
2009	209000000
2010	226000000
2011	267000000
2012	278000000
2013	299000000
2014	310000000
2015	346000000
2016	359000000
2017	370000000
2018	384000000
2019	341000000
2020	102000000