You asked
Please provide any official statistics for the number of wills and probate recorded each year for the UK, ideally in Wales and if at all possible for the 22 Welsh unitary authorities.
We said
Thank you for your request.
Unfortunately, we do not hold the information you have requested.
The National Archives may be better placed to help you, as they have the following website with information regarding Wills: The National Archives: Wills or administrations. Please see the following link for their Freedom of Information page: The National Archives: Freedom of Information.