General Election results: headline data and trends.Jump to full report >>
Since 1945, Labour and the Conservatives have been the largest party in terms of seats won on nine occasions each.
The Conservatives’ best result since 1945 in terms of seats was the 1983 General Election, when they had 397 MPs elected. Their highest share of the vote was in 1955 when they polled 49.6%.
In the 2005 General Election the Liberal Democrats won 62 seats, the highest post war total by the party or its predecessors.