| Whole Japan | Prefectures | |
|---|---|---|
| レベル | 2 |
1 Toukyou-to(About 10) 2 Ibaraki-ken(About 10) 2 Chiba-ken(About 10) 4 Kanagawa-ken(Very rare) |
| Population | About 30 | |
| Ranking | Out of ranking | |
| Rank by city |
|---|
|
1 Katsushika-ku(About 10) 2 Tsukuba-shi(About 10) 3 Zama-shi(Very rare) 3 Abiko-shi(Very rare) 3 Matsudo-shi(Very rare) |
| Rank by subregion |
|---|
| Whole Japan | Prefectures | |
|---|---|---|
| Ratios | Very rare |
1 Ibaraki-ken(0.000285%) 2 Chiba-ken(0.000176%) 3 Toukyou-to(0.000149%) 4 Kanagawa-ken(Very rare) |
| Rank by city |
|---|
|
1 Tsukuba-shi(0.00533%) 2 Zama-shi(0.00442%) 3 Katsushika-ku(0.00409%) 4 Abiko-shi(0.004%) 5 Matsudo-shi(0.00116%) |
| Rank by subregion |
|---|