1988년에 금속·엔지니어링·조선, 광산·채석, 섬유, 건설 노조는 전체 노동조합원의 74%, 1900년에는 약 70%를 점유하였다.
In 1988, the metals/engineering/shipbuilding, mining/quarrying, textile, and construction unions accounted for 74% of the total union membership, and in 1900 about 70%.