{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"nitrogen-use-efficiency","source":"Lassaletta et al. (2014) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/nitrogen-use-efficiency","title":"Nitrogen use efficiency","unit":"%"},"observations":[{"date":"1961-01-01","value":57.1367},{"date":"1962-01-01","value":61.6183},{"date":"1963-01-01","value":56.3715},{"date":"1964-01-01","value":48.4227},{"date":"1965-01-01","value":39.4405},{"date":"1966-01-01","value":42.7505},{"date":"1967-01-01","value":36.9136},{"date":"1968-01-01","value":27.1066},{"date":"1969-01-01","value":31.056},{"date":"1970-01-01","value":33.3592},{"date":"1971-01-01","value":38.3733},{"date":"1972-01-01","value":39.8325},{"date":"1973-01-01","value":39.0834},{"date":"1974-01-01","value":35.4747},{"date":"1975-01-01","value":35.4363},{"date":"1976-01-01","value":40.3743},{"date":"1977-01-01","value":35.9864},{"date":"1978-01-01","value":35.466},{"date":"1979-01-01","value":35.6054},{"date":"1980-01-01","value":30.8048},{"date":"1981-01-01","value":30.446},{"date":"1982-01-01","value":34.2343},{"date":"1983-01-01","value":27.0986},{"date":"1984-01-01","value":33.9979},{"date":"1985-01-01","value":22.1289},{"date":"1986-01-01","value":32.1726},{"date":"1987-01-01","value":29.0735},{"date":"1988-01-01","value":26.6559},{"date":"1989-01-01","value":33.8907},{"date":"1990-01-01","value":31.2949},{"date":"1991-01-01","value":38.8501},{"date":"1992-01-01","value":48.4291},{"date":"1993-01-01","value":45.7104},{"date":"1994-01-01","value":46.5689},{"date":"1995-01-01","value":73.9099},{"date":"1996-01-01","value":37.8161},{"date":"1997-01-01","value":57.4272},{"date":"1998-01-01","value":56.4168},{"date":"1999-01-01","value":61.9062},{"date":"2000-01-01","value":46.0385},{"date":"2001-01-01","value":54.792},{"date":"2002-01-01","value":43.254},{"date":"2003-01-01","value":25.7228},{"date":"2004-01-01","value":53.4791},{"date":"2005-01-01","value":50.9828},{"date":"2006-01-01","value":61.211},{"date":"2007-01-01","value":31.0806},{"date":"2008-01-01","value":59.9458},{"date":"2009-01-01","value":45.4943},{"date":"2010-01-01","value":54.5631},{"date":"2011-01-01","value":43.6656},{"date":"2012-01-01","value":45.1438},{"date":"2013-01-01","value":50.226},{"date":"2014-01-01","value":57.5103}],"summary":{"latest_period":"2014-01-01","latest_value":57.5103,"max":73.9099,"mean":42.4398,"min":22.1289,"of":204,"rank":81,"trend":"rising"}}