{
  "fields": [{"id":"_id","type":"int"},{"id":"Sustancia","type":"text"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,"Pegamento",2013,0.1],
    [2,"Pasta base",2013,0.7],
    [3,"Pastillas",2013,2.8],
    [4,"Cocaína",2013,8.8],
    [5,"Marihuana",2013,54]
]}