21 or more years in the top 10
Names ranked inside the top 10 in at least 21 distinct years.
Counted per year, not per list: a name inside the top 10 of three registrars in one year contributes one year, because the alternative would reward being recorded in more places rather than being ranked higher. A top-10 place is only ever a place within the list that published it.
81 names, ordered by most top-10 years first.