Passage: Batman meets and regularly works with other heroes during the silver age, most notably Superman, whom he began regularly working alongside in a series of team-ups in World's Finest Comics, starting in 1954 and continuing through the series' cancellation in 1986. Batman and Superman are usually depicted as close friends. As a founding member of the Justice League of America, Batman appears in its first story, in 1960's Brave and the Bold #28. In the 1970s and 1980s, Brave and the Bold became a Batman title, in which Batman teams up with a different DC Universe superhero each month.

Question: How often did Batman team up with different superheroes under the Brave and Beautiful?
each month