Greatest net seat losses since 1945 by election year and party

Conservative

Labour

2024

1945

1997

2010

1950

1970

1983

-60

-75

-78

-91

-178

-189

-252

Conservative

Labour

2024

1945

1997

2010

1950

1970

1983

-60

-75

-78

-91

-178

-189

-252