2021 data for BGR completions

Bob Wightman has released the figures for Bob Graham Round (BGR) registrations, completions, male/female split, direction of travel, etc. for 2021, which as always make interesting reading, and that I have commented on before. [eg https://itsahill.wordpress.com/2020/01/08/bgr-completions-2019-update/]

I have updated my spreadsheet, and the graphs of several aspects of the data, which are illustrated below with a couple of comments on each.

This first graph shows the data just for completio...