{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (Eurostat)","slug":"biochemical-oxygen-demand-in-rivers","source":"Eurostat","source_url":"https://ec.europa.eu/eurostat/databrowser/view/sdg_06_30","title":"Biochemical oxygen demand in rivers","unit":"Milligrams per litre"},"observations":[{"date":"2007-01-01","value":3.37},{"date":"2008-01-01","value":3.29},{"date":"2009-01-01","value":3.2},{"date":"2010-01-01","value":3.09},{"date":"2011-01-01","value":2.99},{"date":"2012-01-01","value":2.88},{"date":"2013-01-01","value":2.78},{"date":"2014-01-01","value":2.7},{"date":"2015-01-01","value":2.63},{"date":"2016-01-01","value":2.57},{"date":"2017-01-01","value":2.53},{"date":"2018-01-01","value":2.5},{"date":"2019-01-01","value":2.48},{"date":"2020-01-01","value":2.48},{"date":"2021-01-01","value":2.47},{"date":"2022-01-01","value":2.47},{"date":"2023-01-01","value":2.48}],"summary":{"latest_period":"2023-01-01","latest_value":2.48,"max":3.37,"mean":2.75941,"min":2.47,"of":21,"rank":7,"trend":"falling"}}