Proportion of Sydney LGAs contested per party

In what proportion of the Greater Sydney region's councils did each party run at least one candidate per council?

In what proportion of the Greater Sydney region's councils did each party run at least one candidate per council?
Measured as a proportion of formal votes for 2004-21 and as a proportion of enrolment for 2024
Chart: Ben RaueGet the dataCreated with Datawrapper