Year	current US$
1995	2414000000
1996	2322000000
1997	2558000000
1998	2500000000
1999	2717000000
2000	2684000000
2001	2366000000
2002	2251000000
2003	3655000000
2004	4237000000
2005	4812000000
2006	5230000000
2007	6104000000
2008	6905000000
2009	6421000000
2010	8139000000
2011	8397000000
2012	7145000000
2013	6491000000
2014	6314000000
2015	5734000000
2016	5354000000
2017	6068000000
2018	6348000000
2019	5866000000
2020	1594000000