No certificate shall be issued or continued in operation unless the holder thereof has paid an annual license fee of twenty-five dollars for the right to engage in the taxicab business and ten dollars for each year for each vehicle operated under a certificate of public convenience and necessity. Such license fees shall be for the calendar year and shall be in addition to any other license fees or charges established by proper authority and applicable to such holder or the vehicle under his operation and control. (Prior code § 22-2-8)