{
  "fields": [{"id":"_id","type":"int"},{"id":"año","type":"numeric"},{"id":"valor","type":"numeric"}],
  "records": [
    [1,2006,17.6],
    [2,2007,17.7],
    [3,2008,16.5],
    [4,2009,15.7],
    [5,2010,14.3],
    [6,2011,12.4],
    [7,2012,10.4],
    [8,2013,9.8]
]}