Notwithstanding Sections 19961 and 19962, a city, county, or city and county may amend an ordinance to increase the number of gambling tables that may be operated in a gambling establishment as follows:
(a) If the ordinance in effect on July 1, 2007, provided for five to eight tables, inclusive, the amended ordinance may allow an increase of three tables.
(b) If the ordinance in effect on July 1, 2007, provided for nine to 12 tables, inclusive, the amended ordinance may allow an increase of four tables.