Which leagues send players off most?

Red cards per match. The answer is a continent, not a country.

Primera División (Spanien) sends players off more often than any other: 0,375 red cards a match.

Which leagues send players off most?
League	Reds per match	Matches
1. Primera División Spanien	0.375	371
2. Primeira Liga Portugal	0.362	304
3. Segunda División Spanien	0.332	461
4. Liga MX Mexiko	0.328	335
5. A-League Men Australien	0.327	162
6. Super League Schweiz	0.324	179
7. Premiership Schottland	0.304	227
8. Ukrainische Premjer-Liha Ukraine	0.303	238
9. Liga Profesional Argentina Argentinien	0.292	576
10. Serie B Italien	0.291	388
11. Premjer-Liga Russland	0.289	239
12. Division 1A Belgien	0.288	323
13. Serie A Brasilien	0.277	372
14. Ligue 1 Frankreich	0.276	362
15. Süper Lig Türkei	0.275	306
16. Ligue 2 Frankreich	0.253	371
17. Liga 1 Rumänien	0.233	313
18. HNL Kroatien	0.233	172
19. Fußball-Bundesliga Österreich	0.22	191
20. Super League Griechenland	0.209	234

Showing the major competitions. Include every competition

Second yellows count as the red they produce, exactly as the provider records them. Cups are left out: a cup draws an amateur side against a champion, which is a different game.