Like all other Government Departments and Offices, the Ordnance Survey has had to absorb its share of reductions in staff numbers arising from embargoes on the filling of vacancies, and the early retirement scheme for which 19 people in the Ordnance Survey opted. It is not clear to which embargo the Deputy is referring, but since March 1987, numbers have declined from 352, to 295 at 31 December 1989. Due to a major restructuring in 1984, it is not possible to compare the numbers serving in individual sections on the dates mentioned by the Deputy. However, the total number serving on 31 December 1979 was 328.