This group also includes some middle-income countries, such as China and Nigeria.

这一群体还包括一些中等收入国家，如中国和尼日利亚。

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The demand to push continuous rising of house price can be divided into the consumption demand of middle and low income consumer group and the investment demand of high income consumer group.

推动房价持续上涨的需求事实上可以划归为中低收入群体的消费需求和高收入群体的投机需求。

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This indicates that although the middle-income group got benefits from economic growth, their participation share is smaller than social average level.

相对收入水平的下降，表明该阶层在经济增长中获得了利益，但分享份额低于社会平均水平。

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Since independence in 1976, per capita output in this Indian Ocean archipelago has expanded to roughly seven times the pre-independence, near-subsistence level, moving the island into the upper-middle income group of countries.

FORBES: Seychelles

The ambassador's insistence on hundreds of last-minute amendments brought a flood of counter-proposals from a group of middle-income developing countries, including Pakistan, Iran, Cuba, Syria and Venezuela.

ECONOMIST: United Nations

It is worth noting that there is a group of countries that are both middle-income and fragile.

ECONOMIST: Free exchange