{"entity":{"iso2":"BG","iso3":"BGR","name":"Bulgaria","slug":"bulgaria"},"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":"1991-01-01","value":1962.71},{"date":"1992-01-01","value":5930.93},{"date":"1993-01-01","value":4311.49},{"date":"1994-01-01","value":6202.96},{"date":"1995-01-01","value":7518.7},{"date":"1996-01-01","value":3039.75},{"date":"1997-01-01","value":14145.9},{"date":"1998-01-01","value":17235.1},{"date":"1999-01-01","value":19047.0},{"date":"2000-01-01","value":21887.8},{"date":"2001-01-01","value":23669.2},{"date":"2002-01-01","value":29794.4},{"date":"2003-01-01","value":38922.6},{"date":"2004-01-01","value":51959.6},{"date":"2005-01-01","value":51782.5},{"date":"2006-01-01","value":66961.2},{"date":"2007-01-01","value":96007.7},{"date":"2008-01-01","value":100518.0},{"date":"2009-01-01","value":100637.0},{"date":"2010-01-01","value":92235.6},{"date":"2011-01-01","value":91510.5},{"date":"2012-01-01","value":110106.0},{"date":"2013-01-01","value":109669.0},{"date":"2014-01-01","value":118107.0},{"date":"2015-01-01","value":138155.0},{"date":"2016-01-01","value":162334.0},{"date":"2017-01-01","value":172652.0},{"date":"2018-01-01","value":179124.0},{"date":"2019-01-01","value":172659.0},{"date":"2020-01-01","value":226264.0},{"date":"2021-01-01","value":242190.0},{"date":"2022-01-01","value":267235.0},{"date":"2023-01-01","value":299511.0}],"summary":{"latest_period":"2023-01-01","latest_value":299511.0,"max":299511.0,"mean":92220.8,"min":1962.71,"of":179,"rank":40,"trend":"volatile"}}