Year	current US$
1995	266000000
1996	287000000
1997	307000000
1998	306000000
1999	304000000
2000	357000000
2001	365000000
2002	391000000
2003	402000000
2004	446000000
2005	465000000
2006	501000000
2007	631000000
2008	771000000
2009	610000000
2010	672000000
2011	815000000
2012	824000000
2013	914000000
2014	1012000000
2015	767000000
2016	895000000
2017	1174000000