Year	current US$
1990	623765670.439292
1991	681395671.33356
1992	729008890.117724
1993	806778240.994159
1994	890838624.72437
1995	1022601216.45097
1996	1111028637.88012
1997	882059940.439485
1998	707388565.697236
1999	788279745.12617
2000	756355357.409615
2001	659393194.407783
2002	708865025.135831
2003	769536718.399539
2004	821004119.67908
2005	867034985.286255
2006	1001843331.79699
2007	1178736753.15339
2008	1307207093.69713
2009	1275715923.42206
2010	1446389494.5566
2011	1561942064.61299
2012	1562764308.21355
2013	1550290381.04415
2014	1470585156.58235
2015	1402484719.33824
2016	1440962554.69259
2017	1552606602.48167
2018	1724934645.84281
2019	1847133418.40638
2020	1839292923.24544
2021	1859851626.28269