Hong Kong (CNN) How do you count 1.3 billion people amid a pandemic? China will be finding out as the world's most populous country launches its seventh national census on November 1.names, ID numbers, gender, marital details, as well as education and professional information. As well as traditional methods, citizens will also be encouraged to use cell phones and other digital tools "to declare personal and family information," Xinhua reported. China conducts a national census every 10 years. The last survey found the population had increased from 1.29 billion to 1.37 billion.

Source: CNN September 21, 2020 02:36 UTC