_id	year	month	country_from	city_to	count
1	2007	1	Vietnam	Incheon	110
2	2007	2	Vietnam	Incheon	176
3	2007	3	Vietnam	Incheon	92
4	2007	4	Vietnam	Incheon	126
5	2007	5	Vietnam	Incheon	170
6	2007	6	Vietnam	Incheon	202
7	2007	7	Vietnam	Incheon	245
8	2007	8	Vietnam	Incheon	147
9	2007	9	Vietnam	Incheon	123
10	2007	10	Vietnam	Incheon	62
11	2007	11	Vietnam	Incheon	187
12	2007	12	Vietnam	Incheon	91