{
  "fields": [{"id":"_id","type":"int"},{"id":"Nivel socioeconómico","type":"text"},{"id":"Sí o No","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"Bajo","Si",2013,11.9],
    [2,"Bajo","No",2013,88.1],
    [3,"Medio","Si",2013,7.7],
    [4,"Medio","No",2013,92.3],
    [5,"Alto","Si",2013,12],
    [6,"Alto","No",2013,88]
]}