天下井の由来、語源、分布
| 순위 |
|---|
|
1 Ibaraki-ken(0.00755%) 2 Tochigi-ken(0.00266%) 3 Gunma-ken(0.000811%) 4 Saitama-ken(0.000661%) 5 Fukushima-ken(0.000402%) 6 Yamagata-ken(0.000311%) 7 Kanagawa-ken(0.000307%) 8 Toukyou-to(0.000249%) 9 Chiba-ken(0.000176%) 10 Aichi-ken(매우 적음) |