{"entity":{"iso2":"PL","iso3":"POL","name":"Poland","slug":"poland"},"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":48.1565},{"date":"1962-01-01","value":42.229},{"date":"1963-01-01","value":45.6399},{"date":"1964-01-01","value":43.0768},{"date":"1965-01-01","value":44.4626},{"date":"1966-01-01","value":41.1473},{"date":"1967-01-01","value":40.4873},{"date":"1968-01-01","value":39.9578},{"date":"1969-01-01","value":36.544},{"date":"1970-01-01","value":35.7191},{"date":"1971-01-01","value":35.7219},{"date":"1972-01-01","value":36.1526},{"date":"1973-01-01","value":36.1211},{"date":"1974-01-01","value":34.9297},{"date":"1975-01-01","value":31.2007},{"date":"1976-01-01","value":34.1024},{"date":"1977-01-01","value":30.4619},{"date":"1978-01-01","value":32.5962},{"date":"1979-01-01","value":28.7425},{"date":"1980-01-01","value":25.871},{"date":"1981-01-01","value":33.0922},{"date":"1982-01-01","value":31.4038},{"date":"1983-01-01","value":32.5917},{"date":"1984-01-01","value":37.4002},{"date":"1985-01-01","value":40.3876},{"date":"1986-01-01","value":41.1815},{"date":"1987-01-01","value":42.8029},{"date":"1988-01-01","value":38.6577},{"date":"1989-01-01","value":36.906},{"date":"1990-01-01","value":56.7368},{"date":"1991-01-01","value":53.933},{"date":"1992-01-01","value":41.5371},{"date":"1993-01-01","value":49.3507},{"date":"1994-01-01","value":41.1162},{"date":"1995-01-01","value":49.5486},{"date":"1996-01-01","value":46.9796},{"date":"1997-01-01","value":42.7368},{"date":"1998-01-01","value":49.464},{"date":"1999-01-01","value":47.2829},{"date":"2000-01-01","value":43.3329},{"date":"2001-01-01","value":49.7351},{"date":"2002-01-01","value":50.397},{"date":"2003-01-01","value":42.5366},{"date":"2004-01-01","value":52.9959},{"date":"2005-01-01","value":46.1587},{"date":"2006-01-01","value":39.247},{"date":"2007-01-01","value":43.8665},{"date":"2008-01-01","value":45.9755},{"date":"2009-01-01","value":51.2042},{"date":"2010-01-01","value":45.4255},{"date":"2011-01-01","value":44.7035},{"date":"2012-01-01","value":44.9915},{"date":"2013-01-01","value":47.9448},{"date":"2014-01-01","value":45.2746}],"summary":{"latest_period":"2014-01-01","latest_value":45.2746,"max":56.7368,"mean":41.6707,"min":25.871,"of":204,"rank":107,"trend":"rising"}}