12% of the city's rural labor force → the city's rural labor force on the 24th. What's the difference between them?

To put it simply, there is no compulsory pension and unemployment in the insurance system before Circular 24 (of course, the document requires you to participate in the insurance), so this option has been available since Circular 24. However, from 20 10 to 1, the background directly forces migrant workers to participate in the old-age care. At present, if you use offer in this option, there is only the difference between unemployment (use payment instructions: migrant workers and unemployed individuals do not pay, as for the next step, don't talk about the 24 questions. It is estimated that there are no options for migrant workers and labor. After the introduction of the social security law, Beijing has explicitly abolished the medical categories of migrant workers and the insured births of foreign hukou.