Year	current US$
1995	1323000000
1996	1210000000
1997	1327000000
1998	1756000000
1999	3991000000
2000	4558000000
2001	4178000000
2002	2439000000
2003	2433000000
2004	2874000000
2005	3038000000
2006	2998000000
2007	3423000000
2008	3930000000
2009	3383000000
2010	2853000000
2011	3161000000
2012	2364000000
2013	2435000000
2014	2755000000
2015	2259000000
2016	2220000000
2017	2156000000
2018	2582000000
2019	3070000000
2020	898000000