Year	current US$
1990	911095329.242442
1991	763074043.571929
1992	785196884.195438
1993	842293381.062926
1994	900207633.98227
1995	969600266.376399
1996	1001266816.28999
1997	1093355558.4942
1998	1095099266.49145
1999	1123995412.76887
2000	1113644891.55764
2001	1039838825.64789
2002	896078895.652779
2003	857884788.536795
2004	818652818.825241
2005	891998555.931054
2006	1006176542.92643
2007	1109398491.96513
2008	1257301258.19915
2009	1450755803.69596
2010	1638340504.98923
2011	1739223495.60732
2012	2049379974.69819
2013	2078187347.83726
2014	2179577667.28727
2015	2389069735.90454
2016	2366202265.78404
2017	1620236703.73442
2018	1669838433.1088
2019	1970918005.40607
2020	2376230424.16758
2021	2643045336.24624