Year	current US$
1980	30598844.2200765
1981	32356135.8436355
1982	34214348.72513545
1983	36179278.77242
1984	38257054.7523201
1985	40454157.40674585
1986	42777439.66661525
1987	45234148.026668996
1988	47831945.1478406
1989	50578933.757681
1990	44458771.5509591
1991	49713306.7321748
1992	90832271.74700199
1993	95668578.48693301
1994	102958862.241036
1995	110409108.4946205
1996	117403380.28201449
1997	132409056.58745751
1998	142973090.109932
1999	150340502.76454
2000	163173332.385089
2001	176115991.57406148
2002	191895926.21878502
2003	202746428.487813
2004	209723729.58459
2005	214542587.148758
2006	217606954.550993
2007	244890225.235235
2008	256546444.69374803
2009	272706464.784611
2010	285738751.3603385
2011	298276201.201133
2012	306948662.1910195
2013	334945657.7705125
2014	347746514.833682
2015	376817650.84572697
2016	405790272.65381753
2017	426502692.07611555
2018	444917961.05987996
2019	448114783.722036
2020	353817018.959311
2021	403843828.08132946
2022	449897578.8678535
2023	529000000