Statistics for Longest serving heads of state

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Date	Leader	Country	% Correct
Aug 1999	Vladimir Putin	Russia	100%
Jul 1994	Alexander Lukashenko	Belarus	64%
Nov 1992	Emomali {Rahmon}	Tajikistan	64%
Apr 1986	Mswati III	Eswatini	64%
Oct 1981	Ali Khamenei	Iran	55%
Oct 1967	Hassanal Bolkaih	Brunei	55%
Mar 1998	Henri	Luxembourg	55%
Apr 1991	Isaias {Afwerki}	Eritrea	55%
Jun 1975	Paul Biya	Cameroon	55%
Jan 1986	Yoweri {Museveni}	Uganda	55%
Feb 1999	Abdullah II	Jordan	45%
Aug 1984	Hans-Adam II	Liechtenstein	45%
Jun 1990	Harald V	Norway	45%
Mar 1999	Hamad bin Isa Al Khalifa	Bahrain	36%
Dec 1984	Hun Sen	Cambodia	36%
May 1999	Ismai'l Omar {Guelleh}	Djibouti	36%
Jan 1972	Margrethe II	Denmark	36%
Jul 1999	Mohammed VI	Morocco	36%
Sep 1973	Carl XVI Gustaf	Sweden	27%
Oct 1997	Denis Sassou {Nguesso}	R. Congo	27%
Feb 1996	Letsie III	Lesotho	27%
Aug 1979	Teodoro Obiang Nguema {Mbasogo}	Equatorial Guinea	9%