Year	current US$
1995	6927000000
1996	8764000000
1997	9053000000
1998	8321000000
1999	6498000000
2000	6128000000
2001	5121000000
2002	4971000000
2003	4733000000
2004	6521000000
2005	7161000000
2006	8153000000
2007	11729000000
2008	12897000000
2009	9888000000
2010	9875000000
2011	11471000000
2012	11704000000
2013	12242000000
2014	12691000000
2015	11164000000
2016	11922000000
2017	13925000000
2018	15569000000
2019	15712000000
2020	8379000000