Year	current US$
1960	43358329.169880114
1961	54847017.88144898
1962	61100769.768318124
1963	71726262.46482629
1964	92384057.27260041
1965	99159008.34687914
1966	109899756.89238042
1967	118698730.3276055
1968	143800841.4075393
1969	166179045.28861365
1970	197537598.13514706
1971	252400148.0016138
1972	288459700.8882681
1973	395263298.6231548
1974	497289885.1301048
1975	661649379.9486638
1976	754549623.990315
1977	853550401.9915167
1978	1286915439.2888358
1979	1663206379.6949594
1980	1715262935.8765926
1981	1485290020.511538
1982	1316164896.8986602
1983	1152818556.886555
1984	1037402630.2187138
1985	982943220.2716429
1986	1385480279.0194418
1987	1643726839.7979476
1988	1753913479.3349228
1989	1781144896.1708672
1990	1813675580.405939
1991	1716725049.08414
1992	1945281262.4143202
1993	1709265425.570234
1994	999631322.6428474
1995	1166922084.8149085
2015	4282729872.506684
2016	4775520056.45441
2017	5392170159.048353
2018	5879954679.628184
2019	6538044028.880543
2020	7135764185.232405
2021	7252281760.247078
2022	7309967379.729779
2023	8119044294.993363