{
  "fields": [{"id":"_id","type":"int"},{"id":"Medio de traslado","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"A pie",2013,50.9],
    [2,"Auto",2013,23.1],
    [3,"Omnibus",2013,7.8],
    [4,"Bicicleta",2013,6.6],
    [5,"Bus infant",2013,2.9],
    [6,"Otro",2013,8.5],
    [7,"Ns/Nc",2013,0.2]
]}