How much power does Parliament give and take
from government?

I'm measuring this by looking at the frequency of terms appearing across primary legislation.

Frequency between 1980 and 2014

View by year

Year Items of legislation Occurrences of "may" Occurrences of "must" or "shall" Total occurrences of "may", "must" or "shall"

View by legislation

Year Legislation Occurrences of "may" Occurrences of "must" or "shall"