China's 7th national population census aided by technology

Census takers register residents' information of a household in Qidong Village of Qicun Town, Zaozhuang City of east China's Shandong Province, Nov. 1, 2020. China on Sunday started its seventh national population count, with about 7 million census takers going door to door to document demographic changes in the world's most populous country. (Photo by Sun Zhongzhe/Xinhua) BEIJING, Nov. 1 (Xinhua) -- China on Sunday started its seventh national population count, with about 7 million census takers going door to door to document demographic changes in the world's most populous country. Carrying out the census is critical to understand the population size, structure, and...