{
  "fields": [{"id":"_id","type":"int"},{"id":"Participación","type":"text"},{"id":"Tramo de Edad","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"Si","65 a 79",2012,24.5],
    [2,"No","65 a 79",2012,75.5],
    [3,"Si","80  y más",2012,19.9],
    [4,"No","80  y más",2012,80.1]
]}