生活费指数指各邮政区域间生活费用的对照，100为平均数，200指平均数的两倍，50为平均数的一半，以此类推。
The cost of living index compares cost of living among Zips with "100" being average, 200 being twice the average, and 50 being half the average and so on.
生活费指数指各邮政区域间生活费用的对照，100为平均数，200指平均数的两倍，50为平均数的一半，以此类推。
The cost of living index compares cost of living among Zips with "100" being average, 200 being twice the average, and 50 being half the average and so on.
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