Year	current US$
1995	22000000
1996	31000000
1997	32000000
1998	25000000
1999	42000000
2000	29000000
2001	40000000
2002	45000000
2003	66000000
2004	75000000
2005	48000000
2006	45000000
2007	43000000
2008	43000000
2009	46000000
2010	45000000
2011	36000000
2012	35000000
2013	33000000
2014	36000000
2015	39000000
2016	30000000
2017	35000000
2018	55000000
2019	62000000
2020	35000000