{
  "fields": [{"id":"_id","type":"int"},{"id":"Días por semana","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"1 día",2013,20.9],
    [2,"2 días",2013,0.7],
    [3,"3 días",2013,0.7],
    [4,"4 días",2013,0.6],
    [5,"5 días",2013,76.7],
    [6,"Ns/Nc",2013,0.3]
]}