Which leagues send players off most?

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

Primeira Liga (Portugal) sends players off more often than any other: 0,391 red cards a match.

Which leagues send players off most?
League	Reds per match	Matches
1. Primeira Liga Portugal	0.391	304
2. Liga MX Mexiko	0.384	333
3. Premjer-Liga Russland	0.342	240
4. Division 1A Belgien	0.288	326
5. Liga Profesional Argentina Argentinien	0.28	492
6. Ligue 1 Frankreich	0.274	376
7. Serie B Italien	0.253	388
8. Süper Lig Türkei	0.252	369
9. Saudi Professional League Saudi-Arabien	0.251	235
10. Primera División Spanien	0.245	376
11. Ligue 2 Frankreich	0.243	367
12. Serie A Italien	0.237	380
13. Segunda División Spanien	0.232	457
14. Super League Schweiz	0.231	182
15. Ukrainische Premjer-Liha Ukraine	0.231	143
16. Fußball-Bundesliga Österreich	0.225	191
17. Premiership Schottland	0.211	232
18. Serie A Brasilien	0.201	374
19. Liga 1 Rumänien	0.192	308
20. Super League China	0.184	174

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.