For the purposes of section
469a–2
(a) of this title, there are authorized to be appropriated not more than $2,000,000 in fiscal year 1974; $2,000,000 in fiscal year 1975; $3,000,000 in fiscal year 1976; $3,000,000 in fiscal year 1977; $3,000,000 in fiscal year 1978; $3,000,000 in fiscal year 1979; $3,000,000 in fiscal year 1980; $3,500,000 in fiscal year 1981; $3,500,000 in fiscal year 1982; and $4,000,000 in fiscal year 1983.