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rate of increase (e.g. prices); rate of climb (e.g. aircraft)
物価の上昇率が高まっている。
The rate of price increases is rising.
賃金の上昇率は物価上昇に追いつかない。
The rate of wage increases can't keep up with rising prices.
今年の株価の上昇率は先進国の中でも最も高い水準に達した。
This year's stock price increase rate reached the highest level among developed countries.