{"entity":{"iso2":"NG","iso3":"NGA","name":"Nigeria","slug":"nigeria"},"indicator":{"licence":"Derived by Statizoid from the sources named on the page","slug":"reserves-excluding-gold-sdr-per-square-kilometre","source":"Statizoid (derived)","source_url":null,"title":"Reserves excluding gold (SDR), per square kilometre","unit":"SDR per square kilometre"},"observations":[{"date":"1961-01-01","value":315.118},{"date":"1962-01-01","value":295.354},{"date":"1963-01-01","value":208.615},{"date":"1964-01-01","value":228.378},{"date":"1965-01-01","value":240.456},{"date":"1966-01-01","value":214.39},{"date":"1967-01-01","value":101.299},{"date":"1968-01-01","value":106.8},{"date":"1969-01-01","value":123.368},{"date":"1970-01-01","value":221.966},{"date":"1971-01-01","value":412.859},{"date":"1972-01-01","value":359.484},{"date":"1973-01-01","value":508.562},{"date":"1974-01-01","value":5024.19},{"date":"1975-01-01","value":5238.8},{"date":"1976-01-01","value":4895.13},{"date":"1977-01-01","value":3825.49},{"date":"1978-01-01","value":1590.04},{"date":"1979-01-01","value":4624.07},{"date":"1980-01-01","value":8810.9},{"date":"1981-01-01","value":3674.55},{"date":"1982-01-01","value":1605.04},{"date":"1983-01-01","value":1038.13},{"date":"1984-01-01","value":1638.0},{"date":"1985-01-01","value":1666.55},{"date":"1986-01-01","value":970.651},{"date":"1987-01-01","value":901.849},{"date":"1988-01-01","value":531.281},{"date":"1989-01-01","value":1475.14},{"date":"1990-01-01","value":2982.37},{"date":"1991-01-01","value":3404.3},{"date":"1992-01-01","value":772.259},{"date":"1993-01-01","value":1096.78},{"date":"1994-01-01","value":1042.34},{"date":"1995-01-01","value":1066.16},{"date":"1996-01-01","value":3112.07},{"date":"1997-01-01","value":6169.87},{"date":"1998-01-01","value":5537.19},{"date":"1999-01-01","value":4360.11},{"date":"2000-01-01","value":8352.01},{"date":"2001-01-01","value":9135.7},{"date":"2002-01-01","value":5920.9},{"date":"2003-01-01","value":5267.15},{"date":"2004-01-01","value":11987.5},{"date":"2005-01-01","value":21724.6},{"date":"2006-01-01","value":30871.0},{"date":"2007-01-01","value":35667.0},{"date":"2008-01-01","value":37781.1},{"date":"2009-01-01","value":29683.8},{"date":"2010-01-01","value":23056.5},{"date":"2011-01-01","value":23343.1},{"date":"2012-01-01","value":31312.5},{"date":"2013-01-01","value":30549.0},{"date":"2014-01-01","value":25950.0},{"date":"2015-01-01","value":22409.9},{"date":"2016-01-01","value":22242.3},{"date":"2017-01-01","value":30537.2},{"date":"2018-01-01","value":33819.5},{"date":"2019-01-01","value":30439.0},{"date":"2020-01-01","value":28000.4},{"date":"2021-01-01","value":31753.5},{"date":"2022-01-01","value":29341.0},{"date":"2023-01-01","value":26216.1}],"summary":{"latest_period":"2023-01-01","latest_value":26216.1,"max":37781.1,"mean":10567.5,"min":101.299,"of":179,"rank":118,"trend":"volatile"}}