{"entity":{"iso2":"PR","iso3":"PRI","name":"Puerto Rico","slug":"puerto-rico-us"},"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":58.05},{"date":"1962-01-01","value":54.8045},{"date":"1963-01-01","value":56.1011},{"date":"1964-01-01","value":55.6847},{"date":"1965-01-01","value":54.3905},{"date":"1966-01-01","value":51.6916},{"date":"1967-01-01","value":46.2449},{"date":"1968-01-01","value":39.5979},{"date":"1969-01-01","value":38.7671},{"date":"1970-01-01","value":37.5219},{"date":"1971-01-01","value":31.4669},{"date":"1972-01-01","value":30.7006},{"date":"1973-01-01","value":27.4078},{"date":"1974-01-01","value":28.1393},{"date":"1975-01-01","value":27.0738},{"date":"1976-01-01","value":25.9288},{"date":"1977-01-01","value":22.5994},{"date":"1978-01-01","value":23.5278},{"date":"1979-01-01","value":21.239},{"date":"1980-01-01","value":21.2506},{"date":"1981-01-01","value":20.8958},{"date":"1982-01-01","value":19.4325},{"date":"1983-01-01","value":19.6155},{"date":"1984-01-01","value":17.3801},{"date":"1985-01-01","value":15.4377},{"date":"1986-01-01","value":13.8991},{"date":"1987-01-01","value":14.1348},{"date":"1988-01-01","value":13.169},{"date":"1989-01-01","value":11.6997},{"date":"1990-01-01","value":9.58683},{"date":"1991-01-01","value":9.88969},{"date":"1992-01-01","value":9.78086},{"date":"1993-01-01","value":10.0071},{"date":"1994-01-01","value":8.0787},{"date":"1995-01-01","value":7.43073},{"date":"1996-01-01","value":7.24449},{"date":"1997-01-01","value":7.07382},{"date":"1998-01-01","value":7.6994},{"date":"1999-01-01","value":4.78407},{"date":"2000-01-01","value":7.20338},{"date":"2001-01-01","value":6.65169},{"date":"2002-01-01","value":6.59553},{"date":"2003-01-01","value":6.88461},{"date":"2004-01-01","value":7.31914},{"date":"2005-01-01","value":5.50569},{"date":"2006-01-01","value":5.47605},{"date":"2007-01-01","value":5.32886},{"date":"2008-01-01","value":5.31592},{"date":"2009-01-01","value":5.30455},{"date":"2010-01-01","value":5.14437},{"date":"2011-01-01","value":5.03005},{"date":"2012-01-01","value":5.04966},{"date":"2013-01-01","value":5.03814},{"date":"2014-01-01","value":7.49025}],"summary":{"latest_period":"2014-01-01","latest_value":7.49025,"max":58.05,"mean":19.792,"min":4.78407,"of":204,"rank":186,"trend":"volatile"}}