_id	year	month	country_from	city_to	count
1	2008	1	Vietnam	Busan	31
2	2008	2	Vietnam	Busan	2
3	2008	3	Vietnam	Busan	18
4	2008	4	Vietnam	Busan	11
5	2008	5	Vietnam	Busan	43
6	2008	6	Vietnam	Busan	52
7	2008	7	Vietnam	Busan	70
8	2008	8	Vietnam	Busan	114
9	2008	9	Vietnam	Busan	128
10	2008	10	Vietnam	Busan	73
11	2008	11	Vietnam	Busan	86
12	2008	12	Vietnam	Busan	24