1. latest data, as well as cities around the world, provinces and cities across the country ranking data and past years. 3 ouwei data is a product of the big data research institute of the western development research center of northwestern university. specializes in the research of big data in china, providing multi-index data on past years, enterprise data, medical, educational data and other multi-index data on countries around the world, provinces, cities, prefecture-level cities, districts, counties and cities. 30 strip

comprehensive other