Year	current US$
1995	336000000
1996	357000000
1997	401000000
1998	466000000
1999	509000000
2000	545000000
2001	430000000
2002	427000000
2003	484000000
2004	530000000
2005	591000000
2006	647000000
2007	825000000
2008	753000000
2009	500000000
2010	629000000
2011	620000000
2012	647000000
2013	649000000
2014	657000000
2015	898000000
2016	1055000000
2017	1322000000
2018	1198000000
2019	1330000000
2020	697000000