At the time of the issuance of such license, and annually thereafter, on or before the first day of January of each calendar year, every taxicab operator now operating and which shall hereafter operate in the City, shall pay the following fees for each taxicab operated or to be operated by it, to wit:
(a) If placed in operation between January 1 and June 30 of any year, the sum of thirty dollars ($30.00) per year.
(b) If placed in operation after June 30 of any year, the sum of fifteen dollars ($15.00).
(c) There shall be no refund of license fees paid in the event that any taxicab is taken off the streets and not thereafter operated by said operator during the time for which a license has been issued.
(1969 Code 113.04)