There are authorized to be appropriated for the first fiscal year after October 23, 1972, and for the next two fiscal years thereafter such sums as may be necessary to carry out this subchapter, but the sums appropriated for any such fiscal year may not exceed $6,000,000. There are authorized to be appropriated not to exceed $1,500,000 for the transition period (July 1 through September 30, 1976), not to exceed $5,600,000 for fiscal year 1977, and not to exceed $6,500,000 for fiscal year 1978, not to exceed $11,396,000 for fiscal year 1981, not to exceed $12,000,000 for fiscal year 1982, not to exceed $10,635,000 for fiscal year 1986, not to exceed $11,114,000 for fiscal year 1987, not to exceed $13,500,000 for fiscal year 1989, and not to exceed $14,500,000 for fiscal year 1990.