Since in the past many parents of children born on the last day (or days) of the year did not follow the rules and reported birth as of 1 January, the fewest residents of Slovenia have their birthdays on 31 December (4,731).
Številni starši otrok, ki so se rodili na zadnji dan (ali zadnje dni) v letu, so namreč pri prijavi rojstva navedli kot datum otrokovega rojstva 1. januar.