Year	current US$
2007	152000000
2008	172000000
2009	120000000
2010	151000000
2011	159000000
2012	159000000
2013	168000000
2014	210000000
2015	274000000
2016	310000000
2017	361000000
2018	394000000
2019	396000000
2020	177000000