Year	current US$
1995	14663000000
1996	15805000000
1997	18140000000
1998	19972000000
1999	18396000000
2000	21316000000
2001	21660000000
2002	20345000000
2003	20464000000
2004	23011000000
2005	24583000000
2006	27029000000
2007	30323000000
2008	34817000000
2009	32613000000
2010	38666000000
2011	43983000000
2012	47827000000
2013	41205000000
2014	43980000000
2015	42003000000
2016	38484000000
2017	40358000000
2018	50678000000
2019	52794000000
2020	13031000000