{
  "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": [
    [1,2009,1,"Vietnam","Busan",9],
    [2,2009,2,"Vietnam","Busan",72],
    [3,2009,3,"Vietnam","Busan",11],
    [4,2009,4,"Vietnam","Busan",9],
    [5,2009,5,"Vietnam","Busan",63],
    [6,2009,6,"Vietnam","Busan",22],
    [7,2009,7,"Vietnam","Busan",23],
    [8,2009,8,"Vietnam","Busan",42],
    [9,2009,9,"Vietnam","Busan",42],
    [10,2009,10,"Vietnam","Busan",11],
    [11,2009,11,"Vietnam","Busan",36],
    [12,2009,12,"Vietnam","Busan",67]
]}