Year	current US$
1995	48000000
1996	51000000
1997	34000000
1998	32000000
1999	63000000
2000	50000000
2001	48000000
2002	49000000
2003	53000000
2004	59000000
2005	58000000
2006	71000000
2007	107000000
2008	102000000
2009	88000000
2010	91000000
2011	81000000
2012	96000000
2013	39500000
2014	54200000.762939505
2015	141000000
2016	87000000
2017	148000000
2018	76000000
2019	130000000