求翻译：通过对1976 年 5 月美国失业者抽样调查的结果显示：如果失业者可以在失业期间获得失业保险金，那么失业保险金替代率每上升 10%，失业者的保留工资水平会上升 4%。是什么意思？

By May 1976 the results of a sample survey of unemployed Americans show : If the unemployed can receive unemployment insurance benefits during periods of unemployment , the unemployment insurance replacement rate increased by 10% each , the unemployed reservation wage level will rise by 4%.

In May 1976, the United States unemployed the results of the sample survey shows that if unemployed people during the period of unemployment for unemployment insurance, unemployment insurance, alternative rate increase of 10 per cent. of the unemployed reservation wage levels will increase by 4 %.

Through the American unemployed sample investigation result demonstrated to May, 1976 that,If the unemployed may in unemployment period obtains the unemployment insurance money, then is unemployed the insurance money substitution rate to rise every time 10%, unemployed's retention wage level can ris

From May 1976 to United States jobless sample results showed that if during the period of unemployment of the unemployed receive unemployment benefits, then substitute 10% rise in the rate of unemployment, the reservation wage of the unemployed increased by 4%.

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