{"entity":{"iso2":"KR","iso3":"KOR","name":"South Korea","slug":"korea-rep"},"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":35.2242},{"date":"1962-01-01","value":33.9744},{"date":"1963-01-01","value":33.6979},{"date":"1964-01-01","value":44.9894},{"date":"1965-01-01","value":41.4368},{"date":"1966-01-01","value":40.6603},{"date":"1967-01-01","value":33.841},{"date":"1968-01-01","value":34.1313},{"date":"1969-01-01","value":34.0668},{"date":"1970-01-01","value":31.0287},{"date":"1971-01-01","value":31.5335},{"date":"1972-01-01","value":30.0667},{"date":"1973-01-01","value":27.5496},{"date":"1974-01-01","value":26.6835},{"date":"1975-01-01","value":28.3779},{"date":"1976-01-01","value":37.6292},{"date":"1977-01-01","value":33.4572},{"date":"1978-01-01","value":32.4178},{"date":"1979-01-01","value":31.6906},{"date":"1980-01-01","value":24.2909},{"date":"1981-01-01","value":28.4465},{"date":"1982-01-01","value":35.5129},{"date":"1983-01-01","value":32.9668},{"date":"1984-01-01","value":34.3116},{"date":"1985-01-01","value":30.5345},{"date":"1986-01-01","value":29.3445},{"date":"1987-01-01","value":26.5401},{"date":"1988-01-01","value":27.2539},{"date":"1989-01-01","value":24.6883},{"date":"1990-01-01","value":22.8851},{"date":"1991-01-01","value":21.9683},{"date":"1992-01-01","value":20.5469},{"date":"1993-01-01","value":20.0282},{"date":"1994-01-01","value":19.6197},{"date":"1995-01-01","value":19.5049},{"date":"1996-01-01","value":20.8646},{"date":"1997-01-01","value":19.2462},{"date":"1998-01-01","value":20.0824},{"date":"1999-01-01","value":21.3151},{"date":"2000-01-01","value":22.7161},{"date":"2001-01-01","value":24.9276},{"date":"2002-01-01","value":22.6951},{"date":"2003-01-01","value":21.79},{"date":"2004-01-01","value":22.2391},{"date":"2005-01-01","value":20.5191},{"date":"2006-01-01","value":22.3022},{"date":"2007-01-01","value":19.3797},{"date":"2008-01-01","value":22.6871},{"date":"2009-01-01","value":24.1885},{"date":"2010-01-01","value":21.1745},{"date":"2011-01-01","value":22.372},{"date":"2012-01-01","value":17.9241},{"date":"2013-01-01","value":21.1161},{"date":"2014-01-01","value":25.1642}],"summary":{"latest_period":"2014-01-01","latest_value":25.1642,"max":44.9894,"mean":27.289,"min":17.9241,"of":204,"rank":151,"trend":"falling"}}