{
  "fields": [{"id":"_id","type":"int"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
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    [4,2001,152],
    [5,2002,179],
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    [8,2005,212],
    [9,2006,205],
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    [14,2011,273],
    [15,2012,278]
]}