Corruption perceptions during each national leader's tenure, worldwide

The leaders of 40 countries since 1991, ranked against one another by how the corruption perceptions 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	Mauricio Macri	Argentina President	10 Dec 2015 – 10 Dec 2019	+13.0 points 2015 → 2019	+3.3 points/yr
2	Bohuslav Sobotka	Czechia Prime Minister	17 Jan 2014 – 6 Dec 2017	+9.0 points 2013 → 2017	+2.3 points/yr
3	Moon Jae-in	South Korea President	10 May 2017 – 10 May 2022	+9.0 points 2016 → 2021	+1.8 points/yr
4	N Petro Poroshenko	Ukraine President	7 Jun 2014 – 20 May 2019	+7.0 points 2013 → 2018	+1.4 points/yr
5	Zoran Milanović	Croatia Prime Minister	23 Dec 2011 – 22 Jan 2016 from 2012	+5.0 points 2012 → 2015	+1.7 points/yr
6	Petr Fiala	Czechia Prime Minister	17 Dec 2021 – 9 Dec 2025	+5.0 points 2021 → 2025	+1.3 points/yr
7	Jüri Ratas	Estonia Prime Minister	23 Nov 2016 – 26 Jan 2021	+5.0 points 2016 → 2020	+1.3 points/yr
8	Alexis Tsipras	Greece Prime Minister	26 Jan 2015 – 8 Jul 2019	+5.0 points 2014 → 2019	+1.0 points/yr
9	Algirdas Butkevičius	Lithuania Prime Minister	22 Nov 2012 – 22 Nov 2016	+5.0 points 2012 → 2016	+1.3 points/yr
10	Xi Jinping	China General Secretary	15 Nov 2012 – now	+4.0 points 2012 → 2025	+0.3 points/yr

Showing 10 of 72 tenures.

Sorted by total, highest first. Rows measure Transparency International's Corruption Perceptions Index score from 0 to 100, comparable from 2012; 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.