{
  "fields": [{"id":"_id","type":"int"},{"id":"Asistencia","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"No asiste",2010,71.7],
    [2,"Asiste",2010,51.4],
    [3,"No asiste",2013,74.5],
    [4,"Asiste",2013,49.2]
]}