Year	current US$
1995	26000000
1996	59000000
1997	50000000
1998	39000000
1999	35000000
2000	32000000
2001	33000000
2002	29000000
2003	39000000
2004	42000000
2005	42000000
2006	42000000
2007	48000000
2008	98000000
2009	84000000
2010	95000000
2011	57000000
2012	132000000
2013	81000000
2014	129000000
2015	140000000
2016	110000000
2017	120000000
2018	141000000
2019	144500000