first year; initial (year)
初年度の売り上げは好調だった。
Sales in the first year were strong.
初年度の業績を分析して改善点を探った。
I analysed the first-year results and looked for areas for improvement.
制度が施行された初年度は問い合わせが相次いだ。
In the first year the system was in force, enquiries came one after another.