The ratio of elderly people increased sharply as a result, the economic dependency between the different ages of the population changed. The original audience age dependency is public เด็ที่ต้อง the labor age population rather than the elderly, but in the near future, this will be the elderly who want the labor age population dependency rather than children. The ratio between the labor age population towards the elderly will be reduced until only 2 per 1 person, on the other hand, the elderly 30 years ahead.
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