{
  "fields": [{"id":"_id","type":"int"},{"id":"anno","type":"numeric"},{"id":"sesso","type":"text"},{"id":"15-29 anni","type":"numeric"},{"id":"15-34 anni","type":"numeric"}],
  "records": [
    [1,2019,"Maschi",4.0,5.0],
    [2,2019,"Femmine",6.5,9.9],
    [3,2020,"Maschi",5.0,6.2],
    [4,2020,"Femmine",7.3,11.1]
]}