{
  "fields": [{"id":"_id","type":"int"},{"id":"Acuerdo/Desacuerdo","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"Acuerdo",2013,22.1],
    [2,"Desacuerdo",2013,74.5],
    [3,"Indiferente",2013,3.4]
]}