Survey of Ringing 1988 I can give some comparators based on ODG reports.
1914
1774 ringing members, 167 towers 'in union', ringers per tower = 10.6
1988
2133 ringing members, 259 towers (with members), ringers per tower = 8.2
2019
2480 ringing members, 303 towers (with members), ringers per tower = 8.2
I chose 2019 as the last pre Covid year.
If you take the average number of ringers per ring able tower, then the figures drop to 7.7 (1988) and 6.7 (2019). The 1914 report doesn't mention towers with no ringers 'in union'.
Simon guessed 10% of ringers in 1914 were women. In Sonning Deanery, which I analysed for the article on the effects of war there were 6.5% women in 1914, the first year there were any. That had doubled by1918 but then went down again.