Scoring: Bolivia

• Date of joining: 1945-11-14
• Expected count from Wikipedia (Gualberto Villarroel onwards): 34?
• Number in Wikidata: 27
• PositionHolderHistory warnings: 13
• Score: 83/132 = 63% 244/340 = 72%

Slightly tricky to count with multiple periods of triumvirates, and acting presidents.