{"entity":{"iso2":null,"iso3":null,"name":"Bielefeld","slug":"bielefeld"},"indicator":{"licence":"OECD Terms and Conditions (attribution required)","slug":"population-and-built-up-density-cities-and-fuas-urbanised-area","source":"Organisation for Economic Co-operation and Development","source_url":"https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_FUA_TERR@DF_DENSITY","title":"Population and built-up density - Cities and FUAs \u2014 Urbanised area","unit":"Square kilometres"},"observations":[{"date":"1975-01-01","value":17.0},{"date":"1980-01-01","value":18.0},{"date":"1985-01-01","value":19.0},{"date":"1990-01-01","value":21.0},{"date":"1995-01-01","value":22.0},{"date":"2000-01-01","value":23.0},{"date":"2005-01-01","value":24.0},{"date":"2010-01-01","value":25.0},{"date":"2015-01-01","value":26.0},{"date":"2020-01-01","value":27.0},{"date":"2025-01-01","value":27.0},{"date":"2030-01-01","value":28.0}],"summary":{"latest_period":"2030-01-01","latest_value":28.0,"max":28.0,"mean":23.0833,"min":17.0,"of":1372,"rank":425,"trend":"rising"}}