Year	current US$
1995	67000000
1996	69000000
1999	186000000
2000	220000000
2001	251000000
2002	276000000
2003	282000000
2004	295000000
2005	295000000
2006	304000000
2007	311000000
2008	286000000
2009	230000000
2010	256000000
2011	314000000
2012	342000000
2013	433000000
2014	464000000
2015	386000000
2016	332000000
2017	354000000
2018	356000000
2019	358000000
2020	119000000