{
  "fields": [{"id":"_id","type":"int"},{"id":"Asistencia","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"No asiste",2010,34.2],
    [2,"Asiste",2010,56.8],
    [3,"No asiste",2013,59.1],
    [4,"Asiste",2013,74]
]}