Government effectiveness during each prime minister's tenure

Every prime minister since 1991, ranked by how the government effectiveness changed from their first day in office. Politare shows what happened during a tenure; it does not claim the office-holder caused it.

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Results

Order

#	Prime minister	In office	Total	Per year
1	Shinzō Abe	26 Dec 2012 – 16 Sep 2020	+10.6 points 2012 → 2020	+1.3 points/yr
2	Fumio Kishida	10 Nov 2021 – 11 Nov 2024	+6.6 points 2021 → 2024	+2.2 points/yr
3	Junichiro Koizumi	26 Apr 2001 – 26 Sep 2006	+1.1 points 2000 → 2006	+0.2 points/yr

Sorted by total, highest first. Every row is indexed to the last count complete before the first day in office ("from" marks a start that had to move because that count had no data, or because the period cut it); Levels are per cent changes, rates are differences in points; "per year" compounds levels and divides rates. Tenures with under 12 months, or under three observations, are left out. points, 0 to 100, higher is better · World Bank, Worldwide Governance Indicators (GOV_WGI_GE.SC): perceptions of the quality of public services, the civil service and of policy-making, a score from 0 to 100 with its 90 % interval · Japan data · as of Sep 2026.