Year	current US$
1995	30000000
1996	23000000
1997	28000000
1998	34000000
1999	45000000
2000	85000000
2001	77000000
2002	117000000
2003	28000000
2004	28000000
2005	85000000
2006	25000000
2007	124000000
2008	389000000
2009	189000000
2010	167000000
2011	65000000
2012	83000000
2013	78000000
2014	62000000
2015	57000000
2016	18000000
2017	66000000
2018	15000000
2019	22000000
2020	8000000