Regulatory quality during each national leader's tenure, worldwide

The leaders of 40 countries since 1991, ranked against one another by how the regulatory quality changed from their first day in office, each on its own country's figures. Politare shows what happened during a tenure; it does not claim the office-holder caused it.

#	Office-holder	Place	In office	Total	Per year	Chart
1	Mikuláš Dzurinda	Slovakia Prime Minister	30 Oct 1998 – 4 Jul 2006	+14.7 points 1998 → 2006	+1.8 points/yr
2	John Howard	Australia Prime Minister	11 Mar 1996 – 3 Dec 2007 from 1996	+13.0 points 1996 → 2007	+1.2 points/yr
3	Algirdas Brazauskas	Lithuania Prime Minister	3 Jul 2001 – 4 Jul 2006	+12.2 points 2000 → 2006	+2.0 points/yr
4	Călin Popescu-Tăriceanu	Romania Prime Minister	29 Dec 2004 – 22 Dec 2008	+9.6 points 2004 → 2008	+2.4 points/yr
5	José María Aznar	Spain Prime Minister	4 May 1996 – 16 Apr 2004 from 1996	+8.7 points 1996 → 2003	+1.2 points/yr
6	Susilo Bambang Yudhoyono	Indonesia President	20 Oct 2004 – 20 Oct 2014	+8.5 points 2004 → 2014	+0.9 points/yr
7	Junichiro Koizumi	Japan Prime Minister	26 Apr 2001 – 26 Sep 2006	+8.5 points 2000 → 2006	+1.4 points/yr
8	Costas Simitis	Greece Prime Minister	22 Jan 1996 – 10 Mar 2004 from 1996	+8.2 points 1996 → 2003	+1.2 points/yr
9	Simeon II of Bulgaria	Bulgaria Prime Minister	24 Jul 2001 – 17 Aug 2005	+7.7 points 2000 → 2005	+1.5 points/yr
10	Bertie Ahern	Ireland Taoiseach	26 Jun 1997 – 7 May 2008	+7.6 points 1996 → 2007	+0.7 points/yr

Showing 10 of 147 tenures.

Sorted by total, highest first. Rows measure the World Bank's Worldwide Governance Indicators score from 0 to 100, one method for every country; yearly; each place is read from its own statistics office's series (the row's chart names it), so a change is set against the place's own first day, never against another country's level. Every row is indexed to the last month, quarter or count complete before the first day in office ("from" marks a start that had to move because that period had no data, or because the period cut it). Changes are differences in points; "per year" divides them by the years in office. Tenures with under 12 months, or under three observations, are left out. Data as of Sep 2026.