Year	current US$
1960	16066015.527773535
1961	19014523.201984152
1962	20997590.05053147
1963	21985467.81883957
1964	11484230.663974002
1965	19676611.940114453
1966	21918943.17530195
1967	22215435.211064115
1968	28569263.192270864
1969	27823654.520781294
1970	25007054.098666035
1971	26587935.433814798
1972	37028534.97089031
1973	42590341.85611421
1974	62500033.8589196
1975	69071585.05157645
1976	80128162.02840744
1977	90048519.15168713
1978	110202772.48727332
1979	144182061.69937274
1980	172630479.08255962
1981	164734426.60316545
1982	143789749.4908595
1983	126168356.02740519
1984	160016200.32499975
1985	154030064.34785944
1986	183075138.96731025
1987	269185210.48364156
1988	287730449.0445854
1989	228834176.818704
1990	340110086.1415836
1991	327535406.08961123
1992	296949143.50596
1993	286407891.48907983
1994	269161995.88484746
1995	336477084.67380804
1996	273232993.3414645
1997	264654980.38845184
1998	359254784.85084647
1999	283164589.79607254
2000	262543948.16520062
2001	288539801.14871824
2002	321134577.55938107
2003	437119286.67881346
2004	593230247.6146837
2005	604914704.7858205
2006	717391852.6680233
2007	789151147.0990851
2008	959257099.0369034
2009	1303153838.066751
2010	2074074305.8576536
2011	3164493995.575066
2012	3340989540.7076507
2013	3640311286.8132086
2014	3755133669.002949
2015	3089098213.344216
2016	3325889850.031205
2017	3731626300.736192
2018	4461756780.164759
2019	4690831780.115387
2020	5632452790.612934
2021	6460187758.594238
2022	5934845694.848761
2023	5864783349.197734