{
  "fields": [{"id":"_id","type":"int"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,2009,67.4],
    [2,2010,68.9],
    [3,2011,71.6],
    [4,2012,71.6],
    [5,2013,74.3],
    [6,2014,76.8],
    [7,2015,79.1],
    [8,2016,80.4],
    [9,2017,81.9]
]}