Complex sentence: Nominees were elected by a simple majority vote, except from 1925 through 1940, when a 3/5 majority was required, and in 1976 when a point system replaced the majority vote.
Split into simpler sentences: Nominees were elected by a simple majority vote, except from 1925 through 1940, when a 3/5 majority was required. In 1976 a point system replaced the majority vote.