Year	current US$
1990	55619779.3669489
1991	65455285.4315898
1992	73409757.3374519
1993	80486414.8926485
1994	87569241.1440567
1995	89429776.1672931
1996	98846447.6318132
1997	104303432.971317
1998	113157580.658073
1999	121949421.575981
2000	132344288.26949
2001	135653818.00132
2002	144495304.590712
2003	164530871.345404
2004	171645755.709067
2005	183803347.465625
2006	196190310.65128
2007	214009502.782801
2008	227852403.736749
2009	228672702.05801
2010	225768119.219186
2011	227590596.724657
2012	220597341.672834
2013	207852226.751889
2014	229297852.949965
2015	238193806.51599
2016	259281414.392238
2017	275389808.156819
2018	282086961.157817
2019	293200442.71351
2020	284786212.797606
2021	318172013.477739