If it is determined that any estimate by the chief clerks under subsection (c) of section 51-219b, is in excess of or lacking in the number of jurors chosen under section 51-220 for those towns within a given judicial district, the Jury Administrator may adjust the number of jurors chosen for those towns within the judicial district in the following manner: (1) The total adjustment in number shall be determined by the Jury Administrator and (2) where possible, the total adjustment shall be apportioned among all towns within the judicial district and in proportion to each town’s population based on the last United States census.