Scoring: El Salvador

Again, several more juntas and other oddities midway through, but as with the others, unless/until the “office held by head of government” gets updated, we’re going to have to make do with just looking at the President.

• Date of joining: 1945-10-24
• Expected count from Wikipedia (Salvador Castaneda Castro onwards): 17?
• Number in Wikidata: 11
• PositionHolderHistory warnings: 4
• Score: 17/64 = 27% 102/170 = 60%