Scoring: Tonga

• Date of joining: 1999-09-14
• Expected count from Wikipedia (Siaosi Tuʻihala ʻAlipate Vaea Tupou onwards): 7
• Number in Wikidata: 6
• PositionHolderHistory warnings: 1
• Score: 58/70 = 83%

This data has previously been complete, but is missing the incumbent, who took office late last year.