Year	current US$
1980	4294337.06966286
1981	4448631.86503025
1982	1772454.18129705
1983	2517315.85878096
1984	6615598.22142834
1985	8420696.82104603
1986	10853755.4253541
1987	10774431.0684584
1988	12962890.4852059
1989	14628672.1164366
1990	16967635.9837847
1991	19850943.6561984
1992	23368384.8530837
1993	26798510.4468929
1994	29623725.3465741
1995	38751091.7754805
1996	44730913.9050188
1997	52258930.8004052
1998	58211050.099749
1999	63573506.5054764
2000	66605657.7677285
2001	98288727.0822153
2002	107262673.49945
2003	118836677.189832
2004	141939774.934313
2005	128756216.695487
2006	161982853.970027
2007	184564524.351713
2008	227239640.483788
2009	237677612.428974
2010	283607164.967832
2011	298180606.886507
2012	310660956.556171
2013	344764572.682823
2014	386059350.569555
2015	457636355.436707
2016	496088814.710833
2017	532842863.711133
2018	598665156.738271
2019	626261073.072617
2020	426961658.119584
2021	592157874.459195