<prompt> Translate the following text to SwahiliWhile Social Security provides a foundation for retirement income, Social Security benefits replace only about 40 percent of pre-retirement income for the average worker.  <response>: Ingawa Social Security hutoa msingi wa mapato ya kustaafu, faida za Social Security zinabadilisha tu asilimia 40 ya mapato ya kabla ya kustaafu kwa mfanyakazi wa kawaida. 