{
  "fields": [{"id":"_id","type":"int"},{"id":"year","type":"numeric"},{"id":"month","type":"numeric"},{"id":"country_from","type":"text"},{"id":"city_to","type":"text"},{"id":"count","type":"numeric"}],
  "records": [
    [1,2010,1,"Vietnam","Busan",32],
    [2,2010,2,"Vietnam","Busan",21],
    [3,2010,3,"Vietnam","Busan",46],
    [4,2010,4,"Vietnam","Busan",40],
    [5,2010,5,"Vietnam","Busan",24],
    [6,2010,6,"Vietnam","Busan",67],
    [7,2010,7,"Vietnam","Busan",101],
    [8,2010,8,"Vietnam","Busan",62],
    [9,2010,9,"Vietnam","Busan",108],
    [10,2010,10,"Vietnam","Busan",119],
    [11,2010,11,"Vietnam","Busan",59],
    [12,2010,12,"Vietnam","Busan",60]
]}