{"entity":{"iso2":"TO","iso3":"TON","name":"Tonga","slug":"tonga"},"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":"1977-01-01","value":10291.6},{"date":"1978-01-01","value":10784.5},{"date":"1979-01-01","value":13242.2},{"date":"1980-01-01","value":14976.7},{"date":"1981-01-01","value":16682.8},{"date":"1982-01-01","value":19592.4},{"date":"1983-01-01","value":27796.2},{"date":"1984-01-01","value":36864.3},{"date":"1985-01-01","value":34784.6},{"date":"1986-01-01","value":25527.2},{"date":"1987-01-01","value":28274.6},{"date":"1988-01-01","value":31488.8},{"date":"1989-01-01","value":26264.3},{"date":"1990-01-01","value":30594.7},{"date":"1991-01-01","value":31344.4},{"date":"1992-01-01","value":32089.7},{"date":"1993-01-01","value":37474.6},{"date":"1994-01-01","value":33811.2},{"date":"1995-01-01","value":26825.0},{"date":"1996-01-01","value":29571.2},{"date":"1997-01-01","value":28300.8},{"date":"1998-01-01","value":28266.9},{"date":"1999-01-01","value":24782.5},{"date":"2000-01-01","value":26268.5},{"date":"2001-01-01","value":26258.3},{"date":"2002-01-01","value":25663.2},{"date":"2003-01-01","value":37172.6},{"date":"2004-01-01","value":49422.4},{"date":"2005-01-01","value":45540.3},{"date":"2006-01-01","value":44289.0},{"date":"2007-01-01","value":57338.6},{"date":"2008-01-01","value":62898.3},{"date":"2009-01-01","value":84787.4},{"date":"2010-01-01","value":94268.6},{"date":"2011-01-01","value":129632.0},{"date":"2012-01-01","value":137725.0},{"date":"2013-01-01","value":140261.0},{"date":"2014-01-01","value":152218.0},{"date":"2015-01-01","value":156464.0},{"date":"2016-01-01","value":182347.0},{"date":"2017-01-01","value":193610.0},{"date":"2018-01-01","value":214856.0},{"date":"2019-01-01","value":219406.0},{"date":"2020-01-01","value":288283.0},{"date":"2021-01-01","value":359044.0},{"date":"2022-01-01","value":391944.0},{"date":"2023-01-01","value":410486.0}],"summary":{"latest_period":"2023-01-01","latest_value":410486.0,"max":410486.0,"mean":87868.4,"min":10291.6,"of":179,"rank":36,"trend":"volatile"}}