Year	current US$
1990	104090175.329432
1991	107341544.406404
1992	114401337.164569
1993	123954687.744079
1994	125203513.675867
1995	130246443.238519
1996	160128061.703066
1997	148839343.240022
1998	168452434.746663
1999	161356658.242455
2000	162599714.620019
2001	173109020.96878
2002	168678615.065401
2003	192057756.735252
2004	195031936.470423
2005	214747442.087254
2006	226109339.574158
2007	249806501.967644
2008	254421759.876837
2009	244967017.69303
2010	246916025.824981
2011	283966258.519539
2012	281183945.215569
2013	263128653.544293
2014	259264822.146092
2015	257666583.140291
2016	262154353.119046
2017	291479151.646694
2018	286004850.667635
2019	338465050.219548
2020	314399356.116474
2021	333560136.413956