The protests have become an annual occurrence since 1992, when homosexual groups were banned from the procession.

Seasonal migration by agricultural labourers is an annual occurrence during the summer months.

Folk on the Rocks is a local music festival that has been an annual occurrence since 1980.

They became an annual occurrence for decades to come.

He said he intended this to be an annual occurrence.

An annual occurrence during the 1990s, it now alternates with a production by the local primary School.

The joint meeting was expected to become an annual occurrence.

It has been an annual occurrence since the league's inception in 1946.

Indeed we have fish killed in our rivers and lakes and this is an annual occurrence.

It is also the fact that the droughts in this region have become an almost annual occurrence.