Year	current US$
1995	25000000
1996	29000000
1997	27000000
1998	29000000
1999	25000000
2000	26000000
2001	29000000
2002	26000000
2003	46000000
2004	59000000
2005	56000000
2006	76000000
2007	64000000
2008	81000000
2009	89000000
2010	56000000
2011	52000000
2012	62000000
2013	71000000
2014	87000000
2015	57000000
2016	56000000
2017	60000000
2018	76000000