请问during a depression with 20 percent of the population on relief的意思

题目

请问during a depression with 20 percent of the population on relief的意思
Old stuff?Yes,but believe it or not,in the most sophisticated town on earth,during a depression with 20 percent of the population on relief,twenty-five hundred people had left their homes and hustled to the hotel in response to that ad.
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答案

翻译为：在只有20%的人口接受到救济的萧条时期