一いち年ねんごと

adverb

every year; annually

Indicates that something happens or is done once each year, on a yearly basis.

• この町まちでは一いち年ねんごとに祭まつりが開ひらかれる。

  In this town, a festival is held every year.

• 契けい約やくは一いち年ねんごとに更こう新しんされる。

  The contract is renewed annually.