I know that the right hon. Gentleman, as a fair man, would like me to correct the slightly unfortunate impression that he gave about light dues. Despite the unfortunate recent increases, they have decreased in real terms by 18 per cent. since the Conservative party took office in 1979. The right hon. Gentleman will be aware that nearly 90 per cent. of the vessels that are charged those dues are foreign. I am, of course, aware that dues are also relevant to the problems of our port industry.