Except as may be otherwise provided in an ordinance authorizing the issuance of general obligation bonds, all general obligation bonds of the City and County of Honolulu shall bear interest at a rate or rates not exceeding 13 percent per year.
(Sec. 5-40.1, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 6, Art. 33, § 6-33.1)