Statistics for Longest serving European prime ministers in modern time

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Length	Country	Prime minister	% Correct
18, 239	Yugoslavia	Josip Broz Tito	90%
35, 129	Spain	Francisco Franco	80%
20, 267	Italy	Benito Mussolini	70%
36, 82	Portugal	António de Oliveira Salazar	60%
20, 354	Ireland	Éamon de Valera	40%
23, 3	Sweden	Tage Erlander	40%
17, 17	Norway	Einar Gerhardsen	30%
25, 89	San Marino	Giuliano Gozi	20%
18, 312	Luxembourg	Jean-Claude Juncker	20%
17, 30	Liechtenstein	Josef Hoop	20%
22, 122	Poland	Józef Cyrankiewicz	20%
18, 258	Czechoslovakia	Lubomir Štrougal	20%
27, 151	Albania	Mehmet Shehu	20%
22, 136	Vatican City	Nicola Canali	20%
20, 49	Luxembourg	Pierre Werner	20%
22, 27	East Germany	Willi Stoph	20%