Year	current US$
2001	2000000
2002	2000000
2003	44000000
2004	50000000
2005	61000000
2006	73000000
2007	88000000
2008	159000000
2009	159000000
2010	144000000
2011	135000000
2012	158000000
2013	141000000
2014	153000000
2015	92000000
2016	101000000
2017	151000000
2018	164000000
2019	178000000
2020	158000000