Each party’s share of councillors in Great Britain

Includes seats not contested

50%

40

Con

30

Labour

20

Others

Lib Dem

10

Green

0

1973

1980

1990

2000

2010

2020

50%

40

Conservative

30

Labour

20

Others

Lib Dem

10

Green

0

1973

1980

1990

2000

2010

2020

Guardian graphic. Source: opencouncildata.co.uk. Note: Total number of council seats changes over time. Elections not held in 2020. Greens disaggregated from ‘others’ in 2016. Lib Dem includes Liberal Party and SDP-Liberal alliance up to 1988