In recent years, usage of Mon has declined rapidly, especially among the younger generation.

While popular for many years usage declined as the facility aged.

Since the second half of the 20th century, the usage of the language is declining.

In recent years, usage of the Mark and Avoid system has declined.

Its usage declined thereafter, and the name has become rather unfashionable since the 1960s.

The vastness of this new theatre meant its usage declined.

The policy, he said, is working because usage has declined each year it has been in effect.

The ghungat was popular in India until at least the 1930s, but its usage has steadily declined since.

Its usage subsequently declined until "revived by the private presses near the end of the 19th century."

Its usage peaked in the 1980s and has gradually declined.