On November 1, China will start its National Population Survey which will cover one percent of the population. This is the 6th survey of its kind since 2010. The survey will cover 60,000 districts, 14 million people, and over 5 million families. The length of time for the survey is from November 1 through 15.
Source: People’s Daily, November 2, 2015
http://politics.people.com.cn/n/2015/1102/c1001-27763541.html