Year	current US$
1969	2440000.05722046
1970	2250000
1971	2180000.0667572
1972	5750000
1973	10079999.923706101
1974	8189999.580383301
1975	13579999.923706101
1976	7769999.98092651
1977	12020000.4577637
1978	4679999.82833862
1979	5739999.771118159
1980	4900000.09536743
1982	18920000.0762939