_X_ times per day at institution-specified times, where X is a numeral 5 or greater.
_x_ times per day at institution-specified times, where x is a numeral 5 or greater.
_X_ times per day at institution-specified times, where X is a numeral 5 or greater.
_x_ times per day at institution-specified times, where x is a numeral 5 or greater.