CREATE TABLE table_272865_20 (years_active VARCHAR, asian_cup_played_as_a_captain VARCHAR)

What is the total number of years active listings where Asian Cup played as a captain is Japan 1992?
SELECT COUNT(years_active) FROM table_272865_20 WHERE asian_cup_played_as_a_captain = "Japan 1992"
SELECT COUNT("years_active") FROM "table_272865_20" WHERE "Japan 1992" = "asian_cup_played_as_a_captain"