Year	current US$
1995	2000000
1996	2000000
1997	1000000
1998	16000000
1999	12000000
2000	9000000
2001	12000000
2002	21000000
2003	38000000
2004	43000000
2005	51000000
2006	54000000
2007	25000000
2008	25000000
2009	109000000
2010	110000000
2011	30000000
2012	110000000
2013	131000000
2014	33000000
2015	33000000
2016	33000000
2017	41000000
2018	52000000