By the late 80s, interest in the subject among the general public was waning.

In the 1950s the race was not held as interest waned.

By the early 1960s, interest in professional running had waned.

Since the late 1970's, though, interest in the game has waned.

And though my interest in most kinds of food has long since waned, I can still remember.

By the age of 13, however, that interest had waned.

British interest in the island then waned for the next four years.

Do not let it be said, though, that interest waned.

Over the following three years Thomas' interest in the sport waned.

At the same time, many felt that interest in the operation of the store had long ago waned.