Thanks as always to Indy for collecting the detail
Stats do not include GB junior Nationals or Tennis Europe junior events. There has been a plethora of such events this year tying up our top junior players otherwise 2024 would be further ahead.
I thought I'd give this a try - but I can't see anything significant
The rise in singles titles seems to be driven by the rise in singles titles at the lower end of the ITF scale, W15 to W35. Maybe that is fuelled by more players playing at that level as supported by your players ranked table in the following graph? Not sure if the mens version would show a similar increase at that lower end of the ranking scale?