1. Hidakacho includes the number of foals born in former Hidakacho and new Hidakacho.
Monbetsucho includes the number of foals born in Monbetsucho before the merger.
2. Shin-Hidakacho includes the number of foals born in Shin-Hidakacho after the merger.
Shizunaicho and Mitsuishicho include the number of foals born in each town before the merger.