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ranking data and past years.1search | 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.602256search | readings on this page438179people | the site visits49565search | the total visitors to this site25353people | today's total visit61298search | today's total visitors35849people |
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