Year	current US$
1995	53000000
1996	64000000
1997	81000000
1998	49000000
1999	52000000
2000	53000000
2001	52000000
2002	86000000
2003	70000000
2004	70000000
2005	84000000
2006	85000000
2007	79000000
2008	86000000
2009	91000000
2010	90000000
2011	92000000
2012	96000000
2013	90000000
2014	106000000
2015	121000000
2016	100000000
2017	120000000
2018	174000000
2019	195000000
2020	119000000