{"entity":{"iso2":null,"iso3":null,"name":"USSR","slug":"ussr"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"maize-yields","source":"USDA National Agricultural Statistics Service (NASS) (2026); Food and Agriculture Organization of the United Nations (2025) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/maize-yields","title":"Corn yields","unit":"tonnes per hectare"},"observations":[{"date":"1961-01-01","value":2.3951},{"date":"1962-01-01","value":2.209},{"date":"1963-01-01","value":1.593},{"date":"1964-01-01","value":2.7081},{"date":"1965-01-01","value":2.5275},{"date":"1966-01-01","value":2.6064},{"date":"1967-01-01","value":2.6293},{"date":"1968-01-01","value":2.6352},{"date":"1969-01-01","value":2.8687},{"date":"1970-01-01","value":2.8118},{"date":"1971-01-01","value":2.5801},{"date":"1972-01-01","value":2.4501},{"date":"1973-01-01","value":3.0693},{"date":"1974-01-01","value":3.0604},{"date":"1975-01-01","value":2.7632},{"date":"1976-01-01","value":3.0693},{"date":"1977-01-01","value":3.2719},{"date":"1978-01-01","value":3.5503},{"date":"1979-01-01","value":3.1442},{"date":"1980-01-01","value":3.1827},{"date":"1981-01-01","value":2.66},{"date":"1982-01-01","value":3.5376},{"date":"1983-01-01","value":3.4137},{"date":"1984-01-01","value":3.4634},{"date":"1985-01-01","value":3.2142},{"date":"1986-01-01","value":2.955},{"date":"1987-01-01","value":3.2381},{"date":"1988-01-01","value":3.6177},{"date":"1989-01-01","value":3.7148},{"date":"1990-01-01","value":3.4836},{"date":"1991-01-01","value":3.2934}],"summary":{"latest_period":"1991-01-01","latest_value":3.2934,"max":3.7148,"mean":2.95862,"min":1.593,"of":1,"rank":1,"trend":"rising"}}