My wife was pioneering in the late 1960's to early 70's, I'm sure it was 100 hours. The only reprieve she got was if someone invited her along to a BS with them.
I vacation pioneered in the early/mid 1960's and I think it was either 90 or 100 hours.
Of course pioneers and special pioneers got literature and magazines at "discount" rates so you had to put the hours in to "earn" it!
George