"Period covered" by a statement or report required to be filed by this chapter means, unless a different period is specified, the period beginning with the day after the closing date of the most recent statement or report in question. If the person filing the statement or report has not previously filed a report or statement of the same type, the period covered begins on June 4, 1974. Nothing herein shall exempt any person from disclosing transactions which occurred prior to June 4, 1974 according to the law then in effect. (Ord. 4700-NS § 218, 1974)