HC Deb 16 March 1979 vol 964 c362W
Mr. Arnold Shaw

asked the Secretary of State for Education and Science what was the average turnover in length of service of (a) head teachers and (b) assistant teachers in county primary and secondary schools in England and Wales in 1972 and 1978.

Mr. Oakes

I regret that this information is not readily available and could be obtained only at disproportionate cost.