Year	current US$
1995	39000000
1996	50000000
1997	70000000
1998	39000000
1999	47000000
2000	50000000
2001	40000000
2002	78000000
2003	57000000
2004	60000000
2005	54000000
2006	55000000
2007	57000000
2008	61000000
2009	63000000
2010	61000000
2011	61000000
2012	65000000
2013	62000000
2014	74000000
2015	86000000
2016	72000000
2017	86000000
2018	125000000
2019	139000000
2020	83000000