Labor Insurance Act Article 65-4

The amount of pension for this insurance will be adjusted according to the accumulated growth rate of Consumer Price Index published by the Budget, Accounting and Statistics institutions in the central government if the accumulated rate reaches 5%.
中文原文 勞工保險條例第65-4條
本保險之年金給付金額,於中央主計機關發布之消費者物價指數累計成長率達正負百分之五時,即依該成長率調整之。

English translation for reference only; the Chinese text prevails. Not legal advice.