_id	year	month	country_from	city_to	count
1	2010	1	Vietnam	Incheon	115
2	2010	2	Vietnam	Incheon	97
3	2010	3	Vietnam	Incheon	47
4	2010	4	Vietnam	Incheon	159
5	2010	5	Vietnam	Incheon	86
6	2010	6	Vietnam	Incheon	93
7	2010	7	Vietnam	Incheon	28
8	2010	8	Vietnam	Incheon	10
9	2010	9	Vietnam	Incheon	31
10	2010	10	Vietnam	Incheon	10
11	2010	11	Vietnam	Incheon	15
12	2010	12	Vietnam	Incheon	144