Year	current US$
1960	502758192.43120486
1961	485021006.99675274
1962	469634667.14786243
1963	503109261.51486444
1964	531162283.27393574
1965	578881162.264151
1966	631805630.1886792
1967	681856618.8679246
1968	754641494.3396226
1969	837730203.773585
1970	969030158.490566
1971	1060096926.680766
1972	1200686058.7792013
1973	1488154781.6243649
1974	1624813114.7540984
1975	1894935064.177363
1976	2336934399.066511
1977	2992727012.8354726
1978	3409908809.8016334
1979	3885819323.220536
1980	4615347012.835472
1981	2339703624.4402456
1982	2202723100.1361337
1983	2813172458.2712674
1984	3358577550.784443
1985	3637004055.4455447
1986	4145083679.2114697
1987	4235852462.960012
1988	4277829898.403483
1989	4849125767.476267
1990	5459187786.759886
1991	7012202696.234583
1992	8366581365.354744
1993	9377109119.779821
1994	10394715751.496784
1995	11429222091.521461
1996	11578167151.79818
1997	12497934828.030954
1998	13419122090.283447
1999	13735866281.153738
2000	14324629658.65213
2001	15242174336.972055
2002	15815820687.288088
2003	16474760506.948277
2004	17822594846.208298
2005	19287642476.98167
2006	22054540324.694378
2007	26197700344.840603
2008	30212744881.950214
2009	29744714312.915524
2010	36472426417.68862
2011	41344486513.620186
2012	45775956268.5463
2013	49121586876.09428
2014	49902499564.38323
2015	54062017353.07519
2016	56395469028.95307
2017	57355101832.45288
2018	59076173146.595085
2019	60587969644.62449
2020	58761251717.26755
2021	60709803920.43155
2022	64108881252.65228
2023	79835038284.73538