I'm just looking at the 1962 Stormont general election and an extraordinary 25.4% of the votes were given to the Northern Ireland Labour Party, up from 15.8% of the vote in 1958. In both 1958 and 1962, the NILP won a paltry 4 seats out of the 52 seats
in Stormont. In 1962 that 25.4% of the vote translated as 76,842 NILP votes. In sharp contrast, however, in 1962 the UUP won 48.8% of the vote and that translated as 147,629 votes. For this, the UUP won 34 seats
. That's an extraordinary difference.
Can it all be put down to the UUP abandoning PR-STV for First Past the Post, or what other things in the election system did the UUP change to ensure there was such a disparity between votes and seats?
All statistics from: Northern Ireland general election, 1962