{
  "fields": [{"id":"_id","type":"int"},{"id":"Nombre","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1," Planchada de hormigón o bovedilla con o sin tejas",2011,59],
    [2," Liviano con cielo raso",2011,30.5],
    [3," Liviano sin cielo raso",2011,9],
    [4," Quincha",2011,0.7],
    [5," Materiales de desecho",2011,0.2],
    [6," Otro",2011,0.5]
]}