Traditional Culture Encyclopedia - Traditional customs - What does it mean to post a national survey household at the door?

What does it mean to post a national survey household at the door?

Putting the national household survey on the door is the rural household survey.

1. The survey method is to randomly sample rural families with different income levels for statistical survey.

2. The purpose of this is to obtain the main statistical data such as farmers' income through the investigation of rural household income and expenditure accounting.