Question to the Cabinet Office:

To ask His Majesty's Government what has been the average tenure of office notwithstanding machinery of government changes, during the past 10 years, of (1) the Prime Minister, (2) the Chancellor of the Exchequer, and (3) the Secretary of State for (a) Foreign Affairs, (b) Home Affairs, (c) Education, (d) Health, (e) Defence, (f) Transport, (g) Culture, Media and Sport, (h) Environment, Food and Rural Affairs, (i) Work and Pensions, (j) Northern Ireland, (k) Scotland, and (l) Wales.

The Cabinet Office does not calculate the average tenure of ministerial office. However, details of ministerial office-holders are on gov.uk at https://www.gov.uk/government/ministers. Details of the previous holders of each ministerial post dating back to 2010 are also available by selecting each ministerial role on this webpage, then 'previous holders’.