{
  "fields": [{"id":"_id","type":"int"},{"id":"Controles en el Embarazo","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"3 o menos",2013,1.2],
    [2,"4 o 5",2013,4.1],
    [3,"Entre 6 y 8",2013,14],
    [4,"9 o más controles",2013,80.3],
    [5,"Ns/Nc",2013,0.3]
]}