Year	current US$
1995	28000000
1996	66000000
1997	75000000
2003	56000000
2004	47000000
2005	58000000
2006	66000000
2007	85000000
2008	80000000
2009	63000000
2010	74000000
2011	78000000
2012	94000000
2013	71000000
2014	105000000
2015	84000000
2016	84000000
2017	122000000
2018	160000000
2019	152000000
2020	47000000