Which leagues send players off most?

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

Primera División (Peru) sends players off more often than any other: 0.449 red cards a match.

Which leagues send players off most?
League	Reds per match	Matches
1. Primera División Peru	0.449	352
2. Primera División Chile	0.385	239
3. Liga MX Mexico	0.349	327
4. Primeira Liga Portugal	0.332	301
5. Serie B Brazil	0.316	266
6. Primera A Colombia	0.312	404
7. Liga Profesional Argentina Argentina	0.304	319
8. Liga I Romania	0.3	240
9. Ligue 2 France	0.273	366
10. Ligue 1 France	0.272	367
11. Serie B Italy	0.269	335
12. Serie A Brazil	0.268	377
13. Premier League Ukraine	0.266	177
14. Segunda División Spain	0.261	440
15. Süper Lig Türkiye	0.259	305
16. Pro League Saudi Arabia	0.254	236
17. Premier League Russia	0.244	238
18. Serie A Italy	0.241	374
19. Eredivisie Netherlands	0.239	284
20. 1. Lig Türkiye	0.236	237
21. Jupiler Pro League Belgium	0.234	265
22. Major League Soccer United States	0.229	393
23. Premiership Scotland	0.223	211
24. A-League Australia	0.221	136
25. Super League China	0.216	236
26. Super League 1 Greece	0.215	237
27. La Liga Spain	0.208	379
28. 1. Division Cyprus	0.208	173
29. First League Bulgaria	0.205	205
30. 2. Bundesliga Germany	0.196	301
31. Superliga Denmark	0.18	222
32. Ekstraklasa Poland	0.178	276
33. League Two England	0.175	513
34. 3. Liga Germany	0.171	346
35. Bundesliga Austria	0.168	190
36. League One England	0.164	529
37. Veikkausliiga Finland	0.154	156
38. 2. Liga Austria	0.148	237
39. Championship England	0.147	529
40. Bundesliga Germany	0.141	297

Showing every competition. Major competitions only

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.