{
  "fields": [{"id":"_id","type":"int"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,2006,19.2],
    [2,2007,19.4],
    [3,2008,17.8],
    [4,2009,16.8],
    [5,2010,15.5],
    [6,2011,13.1],
    [7,2012,11.2],
    [8,2013,10.4]
]}