Year	current US$
1990	11390543.0511834
1991	15114919.1407585
1992	16477007.5775668
1993	19771053.1356506
1994	25480013.3094747
1995	29045568.3278388
1996	31197912.6180924
1997	36257860.0328863
1998	39716427.7044978
1999	55383143.423153
2000	59768388.2507375
2001	67147669.5686074
2002	56226205.0218004
2003	63458905.8961011
2004	61995443.5364611
2005	74219326.8170314
2006	64252323.9317692
2007	69276238.9484948
2008	80244841.8978134
2009	107155813.860904
2010	132603041.82123
2011	155107607.052176
2012	186420291.24161
2013	196861605.976403
2014	240072500.956148
2015	250016570.266126
2016	373839274.611439
2017	466965301.275415
2018	595125129.879159
2019	548476476.660511
2020	605842526.126016
2021	737047832.372402