{"entity":{"iso2":"PL","iso3":"POL","name":"Poland","slug":"poland"},"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":"1979-01-01","value":1400.55},{"date":"1980-01-01","value":326.638},{"date":"1984-01-01","value":3683.86},{"date":"1985-01-01","value":2587.13},{"date":"1986-01-01","value":1862.52},{"date":"1987-01-01","value":3439.91},{"date":"1988-01-01","value":4986.55},{"date":"1989-01-01","value":5749.68},{"date":"1990-01-01","value":10309.1},{"date":"1991-01-01","value":8291.29},{"date":"1992-01-01","value":9733.13},{"date":"1993-01-01","value":9726.37},{"date":"1994-01-01","value":13064.9},{"date":"1995-01-01","value":32449.5},{"date":"1996-01-01","value":40514.9},{"date":"1997-01-01","value":49380.7},{"date":"1998-01-01","value":63360.5},{"date":"1999-01-01","value":62691.6},{"date":"2000-01-01","value":66560.1},{"date":"2001-01-01","value":66632.6},{"date":"2002-01-01","value":68801.8},{"date":"2003-01-01","value":71592.5},{"date":"2004-01-01","value":74251.6},{"date":"2005-01-01","value":93333.0},{"date":"2006-01-01","value":100625.0},{"date":"2007-01-01","value":130080.0},{"date":"2008-01-01","value":125705.0},{"date":"2009-01-01","value":158124.0},{"date":"2010-01-01","value":188309.0},{"date":"2011-01-01","value":197060.0},{"date":"2012-01-01","value":219695.0},{"date":"2013-01-01","value":216802.0},{"date":"2014-01-01","value":217447.0},{"date":"2015-01-01","value":215403.0},{"date":"2016-01-01","value":268537.0},{"date":"2017-01-01","value":249911.0},{"date":"2018-01-01","value":262215.0},{"date":"2019-01-01","value":276866.0},{"date":"2020-01-01","value":318243.0},{"date":"2021-01-01","value":356014.0},{"date":"2022-01-01","value":376425.0},{"date":"2023-01-01","value":413710.0}],"summary":{"latest_period":"2023-01-01","latest_value":413710.0,"max":413710.0,"mean":120379.0,"min":326.638,"of":179,"rank":35,"trend":"volatile"}}