Even during election landslides 70% of seats do not change hands
- ElectionSeats changing handTotal seats
- 1950.18640
- 1951.28625
- 1955.15630
- 1959.35630
- 1964.70630
- 1966.54630
- 1970.89630
- 1974*.29635
- 1974*.29635
- 1979.74635
- 1983**.10650
- 1987.47650
- 1992.51651
- 1997**.184659
- 2001.30659
- 2005.62646
- 2010**.115650
*1974 had elections in February and October
**Seat change calculated on notional results due to major constituency boundary changes
Source: Rallings & Thrasher, British Electoral Facts 1832-2012