Etymology and distribution of 品玉.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
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Ratio of 品玉.

カンマ区切りで複数の名字を指定できます。

Etymology of 品玉

Distribution of 品玉
Ranking
1 Mine-shi(0.0106%)
2 Takehara-shi(0.0101%)
3 Etajima-shi(0.00919%)
4 Hiroshima-shi Higashi-ku(0.00834%)
5 Miyoshi-shi(0.00578%)
6 Sakado-shi(0.00533%)
7 Iruma-shi(0.0034%)
8 Shimonoseki-shi(0.00254%)