debundesliga1-1, Exercise 3: Checking a league claim

Model answer (claim: "the best-supported league in the world"):

1. Which measure? Average attendance, total attendance, stadium capacity, or television audience give different answers.
2. Which season or period, and was it affected by closures or restrictions?
3. Compared with which leagues, and how are standing areas, capacity and ticket policies different?
4. Who is making the claim, and what is the source?
5. Has the figure been verified against official records?

Any three reasoned checks are acceptable.