asked Her Majesty's Government:
What are the current ministerial posts; in respect of each, how many different ministers have held the post since May 1997, and what has been the average number of months of ministerial tenure of each post during the period. [HL3196]
The Cabinet Office publication List of Ministerial Responsibilities sets out details of ministerial posts and names of postholders. Copies of the publications dating back to May 1997 are available in the Library for the reference of noble Lords. Information about the average number of months of ministerial tenure of each post since 1997 is not available without incurring disproportionate cost.