我国10年一次人口普查，五年一次1%人口抽样调查(人称小普查)，由于我国人口基数极大，对于总和生育率的确定绝非易事。
China's first census in 10, five-year one percent population sampling survey (called on the census), due to China's great population base, the determination of the total fertility rate is never easy.
我国10年一次人口普查，五年一次1%人口抽样调查(人称小普查)，由于我国人口基数极大，对于总和生育率的确定绝非易事。
China's first census in 10, five-year one percent population sampling survey (called on the census), due to China's great population base, the determination of the total fertility rate is never easy.
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