In carrying out the purposes of this chapter, there is hereby authorized to be appropriated $1,000,000 for fiscal year 1979; $2,000,000 for fiscal year 1980; and $3,000,000 for fiscal year 1981, which shall remain available until expended. In a fiscal year when the amounts actually appropriated are less than the amounts listed above, the authorized but unappropriated amount shall continue to be available for appropriation in succeeding fiscal years.