Question to the Ministry of Justice:

To ask the Secretary of State for Justice, how many and what proportion of claimants appeared before the Tribunals Service as litigants in person in each of the last five years.

Information about the number and proportion of litigants in person appearing before Tribunals administered by HM Courts and Tribunals Service is not centrally collated.

However, information specific to the Employment Tribunal only has been published up to 2022/23:

https://assets.publishing.service.gov.uk/media/64809037b32b9e000ca96378/Employment_and_EAT_2021_22.ods