人口、占世界五分之一 Population is the world's one-fifth ; The more one-fifth of the world population
目前，在全球最富有的10%人口中，日本人占五分之一。
The Japanese currently account for a fifth of the world's richest 10 per cent.
土耳其籍塞浦路斯人口占五分之一，占南方GDP的三分之一。
The Turkish Cypriot economy has about one-fifth the population and one-third the per capita GDP of the south.
中美两国经济总量占世界的三分之一，人口之和占世界的四分之一，贸易总额占世界的五分之一。
Together, China and the United States account for about one third of the world economy, one quarter of the world population and one fifth of the international trade.
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