If I might, Madam Chair, the council approaches this, really, from a policy perspective as opposed to as a mathematical issue.
Ethical principles for judges provide that judges must take reasonable steps to maintain and enhance the knowledge, skills, and personal qualities necessary for judicial office. Because of that ethical obligation, in part, the council adopted a policy many years ago that highly recommends—it's not mandatory—that judges devote 10 days each year to professional development.