Year	current US$
1995	10887000000
1996	11015000000
1997	10062000000
1998	9581000000
1999	6727000000
2000	6232000000
2001	6579000000
2002	6901000000
2003	8623000000
2004	9237000000
2005	9316000000
2006	9628000000
2007	10559000000
2008	11438000000
2009	10826000000
2010	10120000000
2011	10556000000
2012	9987000000
2013	10253000000
2014	11095000000
2015	9329000000
2016	9772000000
2017	10768000000
2018	11793000000
2019	11589000000
2020	4903000000