1979-1983
15 deaths, 5 resignations
1983-1987
11 deaths, 15 coordinated resignations in opposition to Anglo-Irish Agreement, and also additional others
1987-1992
20 deaths (including death by suicide), and additional others
1992-1997
16 deaths (including by auto-erotic asphyxiation), and almost no others
1997-2001
10 deaths, two resignations to serve on newly incorporated devolved assemblies, and additional others
2001-2005
Four deaths from only 6 by-elections overall
2005-2010
Five deaths, five resignations (including Boris Johnson resigned to serve as Mayor of London)
2010-2015
6 deaths, two resignations due to fighting election after defecting to UKIP, 12 resignations for various reasons
2015-2017
3 deaths, including one murder, and additional others
2017-2019
1 death, two recall petitions, and additional others
2019-present
4 deaths, including one murder, 12 resignations