Year	current US$
1995	14811000000
1996	15806000000
1997	16643000000
1998	17598000000
1999	16887000000
2000	15686000000
2001	14798000000
2002	16939000000
2003	20604000000
2004	20471000000
2005	22362000000
2006	23162000000
2007	27322000000
2008	30940000000
2009	27967000000
2010	26902000000
2011	28749000000
2012	26239000000
2013	26948000000
2014	28866000000
2015	24425000000
2016	24987000000
2017	27901000000
2018	30004000000
2019	30307000000
2020	10858000000