Year	constant 2021 US$
1960	5679999.82833862
1961	10149999.6185303
1962	4829999.92370605
1963	-109999.999403954
1964	4360000.1335144
1965	10729999.5422363
1966	17010000.2288818
1967	25690000.5340576
1968	9100000.38146973
1969	13560000.4196167
1970	23690000.5340576
1971	30909999.8474121
1972	30840000.1525879
1973	43110000.6103516
1974	41159999.8474121
1975	15789999.961853001
1976	16389999.389648398
1977	22350000.3814697
1978	14399999.6185303
1979	21040000.915527303
1980	27209999.084472697
1981	18590000.1525879
1982	8310000.419616699
1983	9819999.69482422
1984	34090000.1525879
1985	88669998.1689453
1986	53209999.0844727
1987	31540000.915527303
1988	30309999.4659424
1989	850000.023841858
1990	889999.985694885
1991	3859999.89509583
1992	4579999.92370605
1993	-19999.9995529652
1994	899999.976158142
1995	300000.011920929
1996	-360000.01430511504
1997	509999.99046325695
1998	300000.011920929
1999	39999.9991059303