是洞の由来、語源、分布
| 순위 |
|---|
|
1 Shiga-ken(0.0114%) 2 Fukui-ken(0.000956%) 3 Gunma-ken(0.000608%) 4 Hokkaidou(0.000349%) 5 Oosaka-fu(0.000288%) 6 Mie-ken(0.000219%) 7 Aichi-ken(0.000202%) 8 Gifu-ken(0.000189%) 9 Hiroshima-ken(0.000144%) 10 Fukuoka-ken(매우 적음) 11 Chiba-ken(매우 적음) 12 Saitama-ken(매우 적음) 13 Toukyou-to(매우 적음) |