{
  "fields": [{"id":"_id","type":"int"},{"id":"Asistencia","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"No asiste",2010,40.3],
    [2,"Asiste",2010,58],
    [3,"No asiste",2013,40.7],
    [4,"Asiste",2013,70.4]
]}