The town became one of the worst unemployment blackspots in Britain which hit 36 percent in 1981 , and the demolition of the works led to a massive hole in the heart of the town .
The town became one of the worst unemployment blackspots in Britain , and the u8nemplyment figure reached 36 percent in 1981 . 
 The demolition of the works carbed a a massive hole in the heart of the town .