Year	current US$
1995	20823375560.62034
1996	23872464675.640892
1997	25966122508.893375
1998	26694361009.993893
1999	24507654653.62144
2000	27633786540.38405
2001	26908017456.78792
2002	23887582717.396393
2003	24737019059.260025
2004	28162554650.78922
2005	32816692448.19442
2006	36413351115.9382
2007	42810677115.9148
2008	48197411279.78957
2009	45583190517.84062
2010	53868359628.91288
2011	64290224889.89799
2012	70397979487.0762
2013	77342496464.06784
2014	78310575567.7206
2015	69507453850.85
2016	70244511260.52005
2017	80940138324.04561
2018	80791735173.51106
2019	75643090718.27199