Stats cover since 1895. So yes, it changed from 43 to 300+.

See bottom table here:

https://en.wikipedia.org/wiki/Olympic_sports?wprov=sfla1

The values would be more relevant with the percentage of total medals won over the total metals available as the number of disciplines and medals changes with the Olympic Games considered.

@aihorde@lemmy.dbzer0.com draw for me Mélenchon as a communist dominatrix holding a hammer and sickle