Year	current US$
1995	55000000
1996	76000000
1997	55000000
1998	59000000
1999	56000000
2000	61000000
2001	47000000
2002	31000000
2003	33000000
2004	30000000
2005	29000000
2006	29000000
2007	34000000
2008	18000000
2009	26000000
2010	34000000
2011	32000000
2012	28000000
2013	24000000
2014	24000000
2015	26000000
2016	52000000
2017	83000000
2018	96000000
2019	96000000
2020	41000000