_id	year	month	country_from	city_to	count
1	2016	1	Vietnam	Incheon	4
2	2016	2	Vietnam	Incheon	4
3	2016	3	Vietnam	Incheon	22
4	2016	4	Vietnam	Incheon	72
5	2016	5	Vietnam	Incheon	57
6	2016	6	Vietnam	Incheon	90
7	2016	7	Vietnam	Incheon	93
8	2016	8	Vietnam	Incheon	47
9	2016	9	Vietnam	Incheon	78
10	2016	10	Vietnam	Incheon	66
11	2016	11	Vietnam	Incheon	18
12	2016	12	Vietnam	Incheon	58