Which leagues use their bench hardest?

Substitutions per match, both sides together. The permitted number rose from three to five in 2020, and the record shows it.

J1 League (Nhật Bản) uses its bench hardest: 9,62 changes a match.

Showing the major competitions. Include every competition

League play only, for the same reason: extra time in a cup adds a substitution that league football never sees.