Where is 4-2-3-1 the default?

Share of line-ups set out as 4-2-3-1 — the most common shape in football, and in some leagues close to the only one.

Serie A (Brazil) is the most uniform: 56.8% of its line-ups are 4-2-3-1.

Where is 4-2-3-1 the default?
League	4-2-3-1	Line-ups
1. Serie A Brazil	56.8%	720
2. Eredivisie Netherlands	55.5%	616
3. Premier League England	53.8%	760
4. Championship England	51.7%	1,096
5. HNL Croatia	50.9%	322
6. Super Liga Serbia	48.8%	590
7. Premier Soccer League South Africa	47.5%	469
8. Süper Lig Türkiye	46%	609
9. CONMEBOL Sudamericana International	44.8%	290
10. Primera A Colombia	44%	884
11. First League Bulgaria	43.9%	387
12. Primeira Liga Portugal	43.1%	613
13. Super League 1 Greece	40.9%	472
14. Segunda División Spain	40.8%	931
15. Jupiler Pro League Belgium	40.3%	642
16. 1. Division Cyprus	40.3%	442
17. Ligat Ha'al Israel	39.6%	202
18. NB I Hungary	39.2%	204
19. FA Cup England	39.2%	217
20. Liga I Romania	38.8%	640
21. Serie B Brazil	38.3%	754
22. League One England	37.9%	1,088
23. Eerste Divisie Netherlands	37.8%	760
24. UEFA Champions League International	37.7%	554
25. UEFA Europa League International	37.6%	529
26. La Liga Spain	37%	756
27. 1. Lig Türkiye	36.8%	750
28. Czech Liga Czechia	36.2%	556
29. Challenger Pro League Belgium	35.5%	383
30. NWSL Women United States	35.4%	378
31. Premier League Egypt	35.3%	626
32. CONMEBOL Libertadores International	35%	274
33. Liga Profesional Argentina Argentina	35%	978
34. Major League Soccer United States	34.4%	1,080
35. Paulista - A1 Brazil	34.1%	208
36. Liga MX Mexico	33.7%	673
37. Premier League Russia	33.4%	488
38. Segunda Liga Portugal	31.8%	399
39. Premiership Scotland	31.7%	464
40. First League Russia	30.8%	383

Showing every competition. Major competitions only

Exact formation as recorded.