Note: Data in this table are estimated from sample surveys.

注：本表数据为抽样调查数。

youdao

The Gallup World Poll conducted surveys on a wide range of subjects in a representative sample of people from 132 countries from 2005 to 2006.

盖洛普世界民意调查从2005年到2006年间，对132个国家民众的代表性样本就广泛的问题进行了调查。

youdao

Thee gallup world poll conducted surveys on a wide range of subjects in arepresentative sample of people from 132 countries from 2005 to 2006.

盖洛普世界民意调查从2005年到2006年间，对132个国家民众的代表性样本就广泛的问题进行了调查。 。

youdao

From sample surveys, officials estimate the population at the end of 2009 to have been 1.33 billion.

ECONOMIST: China's ten-yearly census: The world's biggest headcount | The

Jaime Gahche, main author of the CDC report, and her co-authors analyzed responses from a sample size of 37, 596, using National Health and Nutrition Examination surveys.

CNN: Half of Americans use supplements

On the basis of the national sample surveys (NSS), they calculate that India's sex ratio at birth swung from 924 females per 1, 000 males in 2004-05 to 977 in 2011, a stunning turnaround in favour of girls.

ECONOMIST: Banyan