Where do matches end goalless most?

Share of matches that finish 0:0. Across the majors it is 7.3%.

Ligue Haïtienne (Haiti) ends goalless most often: 20,5% of its matches finish 0:0.

Where do matches end goalless most?
League	Goalless	Matches
1. Ligue Haïtienne Haiti	20.5%	166
2. Championnat National Benin	19.1%	152
3. İran Pro Ligi İran	17.5%	240
4. Elite One Kamerun	16.8%	149
5. Liga Pro Serie B Ekvador	16.7%	186
6. 3. Lig - Group 1 Türkiye	16.3%	252
7. Premier League Gana	15.8%	133
8. Premier Soccer League Zimbabve	15.3%	308
9. Torneo Federal A Arjantin	15.2%	322
10. Botola 2 Fas	15%	240
11. Premier League Etiyopya	14.7%	136
12. Primera División RFEF - Group 4 İspanya	14.6%	280
13. Tercera División RFEF - Group 4 İspanya	14.6%	280
14. Lig-i Âzâdigân İran	14.4%	306
15. Serie B Brezilya	14.2%	380
16. Primera Nacional Arjantin	14.1%	333
17. Beta Ethniki Yunanistan	13.7%	161
18. League Ürdün	13.6%	132
19. Primera C Arjantin	13.5%	252
20. National 3 - Group I Fransa	13.4%	112
21. Division Intermedia Paraguay	13.3%	240
22. Prva Liga Sırbistan	13.3%	240
23. National Soccer League Ruanda	13.3%	188
24. NPFL Nijerya	13.3%	279
25. Ligue 1 Burkina Faso	13%	192
26. Primera B Metropolitana Arjantin	12.9%	224
27. Campeonato de Portugal Prio - Group B Portekiz	12.9%	225
28. Ligue 1 Tunus	12.6%	182
29. Premier League Suriye	12.6%	182
30. Super League Zambiya	12.6%	175
31. Championnat National Fransa	12.6%	223
32. Liga II Romanya	12.6%	231
33. Primera División RFEF - Group 3 İspanya	12.5%	280
34. Botola Pro Fas	12.5%	240
35. Yunanistan Süper Ligi Yunanistan	12.4%	242
36. Primera Division Nikaragua	12.3%	195
37. Primera D Arjantin	12.3%	130
38. 3. Lig - Group 3 Türkiye	12.3%	252
39. Sudani Premier League Sudan	12.3%	440
40. Serie C Brezilya	12%	192

Showing every competition. Major competitions only

League play only, for the same reason as the scoring rate above.