The proportion of single parent families varies between different income groups.

单亲家庭比例在不同收入群中各不相同。

《牛津词典》

The results show that: Firstly, the average tax rate of the dividend income is progressive among the different income groups.

通过实证分析发现：第一，股利所得税平均税率在城镇不同收入组之间都具有累进性；

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Using data from the city household survey of Guangdong Province, we studied the incidences of three major indirect taxes in different income groups.

本文利用城市住户调查资料考察了中国增值税、消费税和营业税这三项主要的间接税在不同收入群体的负担情况。

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It is unfortunate that the political rhetoric aimed at pitting folks in different income groups against each other is not supported by the facts.

FORBES: Tax Rates, Tax Revenues And The GDP

Interestingly, different income groups are helped by very different preferences.

FORBES: Pain Will Be Widespread If Tax Breaks Are Cut

To back these claims up, the authors constructed price indices for 12 income groups, using official figures and detailed private information on the spending habits of different households.

ECONOMIST: Economics focus