Statistical summary

Official Languages in Presidential Systems
59 Presidential Systems have 24 languages, including English (17 States, 29%), Spanish (17 States, 29%), French (7 States, 12%), Arabic (6 States, 10%) and Portuguese(3 States, 5%).

Official Languages in Parliamentary Systems
68 Parliamentary Systems have 41 languages including English (29 States, 43%), French (5 States, 7.5%), German (4 States, 6%) and Arabic (4 States, 6%).

Official Languages in Semi-Presidential Systems
54 Semi-Presidential Systems have 41 languages, including French (17 States, 31%), English (5 States, 9%), Arabic (5 States, 9%), Portuguese (5 States, 9%) and Russian (4 States, 7%).

Official Languages in Monarchical Systems
12 Monarchical Systems have 7 languages, including Arabic (8 States, 67%), followed by English (3 States. 25%).

Official Languages in the Directorial System
Switzerland (the only Directorial State) has three co-official languages: German, French and Italian.