By-elections by parliament, 1979–2024

A column chart showing the number of by-elections according to parliamentary session.

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Source: Sarah Priddy and Sam Tompkins, UK parliamentary by-elections since 1945, House of Commons LibraryNotes: The high number of 20 by-elections for the 1983–87 parliament was due to the resignation of 15 Northern Irish MPs in protest to the Anglo-Irish agreement.Get the dataEmbed Download image

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