{
  "fields": [{"id":"_id","type":"int"},{"id":"Nombre","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"Cerámica. baldosas. piedra laja. madera. moqueta. linóleo. etc.",2011,81.1],
    [2,"Arena y portland",2011,14.3],
    [3,"Sólo contrapiso sin piso",2011,3.9],
    [4,"Tierra sin piso ni contrapiso",2011,0.5],
    [5,"Otro",2011,0.2]
]}