{
  "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": [
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    [2,2021,2,"Vietnam","Incheon",10],
    [3,2021,3,"Vietnam","Incheon",24],
    [4,2021,4,"Vietnam","Incheon",24],
    [5,2021,5,"Vietnam","Incheon",20],
    [6,2021,6,"Vietnam","Incheon",58],
    [7,2021,7,"Vietnam","Incheon",19],
    [8,2021,8,"Vietnam","Incheon",33],
    [9,2021,9,"Vietnam","Incheon",18],
    [10,2021,10,"Vietnam","Incheon",21],
    [11,2021,11,"Vietnam","Incheon",59],
    [12,2021,12,"Vietnam","Incheon",77]
]}