Year	current US$
1965	206095238.0952381
1966	185904761.9047619
1967	176952380.95238096
1968	213523809.52380952
1969	205333333.3333333
1970	245142857.1428571
1971	326629273.8618175
1972	480000335.3714134
1973	539141737.5876431
1974	664134448.8531711
1975	799966191.6090558
1976	800419800.5947175
1977	808158508.1585082
1978	900591343.4621826
1979	973522740.133149
1980	1235613731.7856262
1981	1151874022.8916736
1982	1069940594.5957843
1983	1033638936.4833587
1984	1173096405.5337505
1985	1330024350.0268426
1986	1173382836.1432643
1987	1596790971.4696703
1988	1194445351.1524775
1989	1304722006.5710123
1990	1932159090.909091
1991	2186195652.173913
1992	2498436851.632628
1993	2148759342.5402145
1994	1963216990.887288
1995	2049487152.373903
1996	2686026825.339426
1997	2330754456.9711046
1998	2311269182.6384773
1999	2433433792.071487
2000	2148709803.798544
2001	2079010893.7640796
2002	1920402776.0486674
2003	2550878647.1891203
2004	3087998317.097121
2005	2959305027.6969986
2006	3190398377.190511
2007	3363072615.147367
2008	3520860420.308698
2009	3674881042.750551
2010	3163336593.544781
2011	3646229568.0513263
2012	3926968061.812212
2013	3879893491.430197
2014	4309128661.257308
2015	4214424979.2901297
2016	3781881516.717853
2017	3788841852.9195986
2018	4221065886.5745807
2019	4092647540.427742
2020	4415618495.227137
2021	4749742974.241599
2022	4812779799.671487
2023	4597315652.257877