Year	current US$
2001	1102000000
2002	1085000000
2003	1192000000
2004	1500000000
2005	1823000000
2006	2317000000
2007	1709000000
2009	1812000000
2010	2022000000
2011	2164000000
2012	2191000000
2013	2350000000
2014	2624000000
2015	2202000000
2016	2083000000
2017	2235000000
2018	2347000000
2019	2259000000
2020	893000000