1 - Borussia Dortmund (GER): 81.365 ≈100%
2 - Bayern München (GER): 75.000 ≈100%
3 - Interazionale (ITA): 73.555 ≈ 100%
4 - Manchester United (ENG): 73.488 ≈ 99%
5 - Milan (ITA): 72.362 ≈95%
6 - Real Madrid (SPA): 68.588 ≈ 81%
7 - Olympique de Marseille (FRA): 63.621 ≈ 65%
8 - West Ham (ENG): 62.468 ≈ 100%
9 - Rome (ITA): 62.439 ≈86%
10 - Tottenham (ENG): 61.726 ≈ 99%
11 - Arsenal (ENG): 60.113 ≈99%
12 - Benfica (POR): 59.594 ≈91%
13 - Atlético de Madri (ESP): 58.857 ≈86%
14 - Celtic (SCO): 58.553 ≈ 96%
15 - Flamengo (BRA): 56.743 ≈72%
16 - Eintracht Frankfurt (GER): 55.220 ≈95%
17 - Stuttgart: 53.300 ≈99%
18 - Manchester City (ENG): 53.311 ≈ 100%
19 - Borussia Mönchengladbach (GER): 53.255 ≈88%
20 - Newcastle (ENG): 52.106 ≈ 100%
it helps being a smaller side tbh.
Why would that help?
bigger side sells tickets more selectively. a big talking point right now in the arsenal fan base for example is the ballot model (lots of other fans complain too about this). results in people botting the ballot and scalping tickets and other fans with more loyalty who were attending in the down time not getting tickets.
west ham are very unlikely to have that problem
West Ham tickets are so easy to get that 10% of home fans are most likely away fans.