I want to know the answer to the following question:
What percentage of voters rejected the separation of church and state in 1980?
All the background I'm provided with is that "The Swiss Constitution of 1848, under the recent impression of the clashes of Catholic vs. Protestant cantons that culminated in the Sonderbundskrieg, consciously defines a consociational state, allowing the peaceful co-existence of Catholics and Protestants.". Is that enough to answer the question?
Answer: no