Which leagues send players off most?

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

Portekiz Süper Ligi (Portekiz) 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. Portekiz Süper Ligi Portekiz	0.391	304
2. Primera División de México Meksika	0.384	333
3. Rossiyskaya Premyer-Liga Rusya	0.342	240
4. Belçika Birinci Ligi Belçika	0.288	326
5. Liga Profesional Argentina Arjantin	0.28	492
6. Fransa Ligue 1 Fransa	0.274	376
7. Serie B İtalya	0.253	388
8. Süper Lig Türkiye	0.252	369
9. Devrî'l-Muhterifin es-Suudî Suudi Arabistan	0.251	235
10. La Liga İspanya	0.245	376
11. Ligue 2 Fransa	0.243	367
12. Serie A İtalya	0.237	380
13. Segunda División İspanya	0.232	457
14. İsviçre Süper Ligi İsviçre	0.231	182
15. Ukrayna Premier Ligi Ukrayna	0.231	143
16. Avusturya Bundesliga Avusturya	0.225	191
17. Premier Lig İskoçya	0.211	232
18. Serie A Brezilya	0.201	374
19. Liga I Romanya	0.192	308
20. Super League Çin	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.