Year	current US$
1995	141000000
1996	135000000
1997	119000000
1998	157000000
1999	183000000
2000	182000000
2001	225000000
2002	276000000
2003	312000000
2004	385000000
2005	421000000
2006	529000000
2007	597000000
2008	687000000
2009	604000000
2010	621000000
2011	656000000
2012	712000000
2013	768000000
2014	782000000
2015	754000000
2016	754000000
2017	775000000
2018	807000000
2019	814000000
2020	256000000