prize5-9, Exercise 2: Has the Fringe recovered?

Model answer (one possible plan; check the sources):

Figures to gather:
1. Number of registered shows and performances per year, 2019 to the present.
2. Tickets issued and ticket income, per year.
3. Number of performers and companies, and the share from outside the UK.
4. Venue numbers and capacity.
5. Visitor and accommodation data for the city in August.

Pitfalls:
- Different definitions across years (what counts as a show, a ticket, a free ticket).
- Online and hybrid events, which may or may not be counted.
- Price changes, so that a rise in income may hide a fall in tickets.
- The choice of baseline: 2019 may itself have been a peak.
- Sources with an interest, such as organisers or venues presenting figures favourably.

Method: compare several measures from official reports and independent sources over the same period, and say which show recovery and which do not.