Section 6. Tax levy for certain institutions

The legislature may levy a permanent tax for the creation of a building fund for institutions caring for those who are mentally ill, retarded, visually handicapped, with a handicapping hearing loss, tubercular or for children who are dependent, neglected or delinquent and in need of residential institutional care or treatment and for institutions primarily designed to provide vocational rehabilitation for handicapped persons, and the legislature shall apportion among and appropriate the same to the several institutions, which levy, apportionment and appropriation shall continue until changed by statute. Nothing herein contained shall prevent such further appropriation by the legislature as may be deemed necessary from time to time for the needs of said charitable and benevolent institutions. Nothing in this amendment shall repeal any statute of this state enacted prior to this amendment, and any levy, apportionment or appropriation made under authority of this section before its amendment, and any statute making the same, shall remain in full force and effect until amended or repealed by the legislature.