Iv'e gone down a rabbit hole.
It's astonishing how many have a Test cap although there are a lot that will sit with 1-5 games and not 20+which is really then an established Test player and not someone given a crack. Edmed, Maddocks, Stewart are not in the same category as Bell, McReight, Valetini etc.
It is then very noticeable the amount of guys that never had a pro career along side so many guys who got Test caps.
Few guys are double counted if they made the squad in different years as well as people like Tuipolotu, Lomax who have played for other nations.
Internationals by year:
2015: 7 out of 28 - 5th
2016: 8 out of 28 - 6th
2017: 10 out of 29 - 6th
2018: 8 out of 28 - 5th
2019: 10 out of 26 - 2nd (unbelievable amount of talent in this side)Bell, McReight, Loloseio, Donaldson, Wilson, Nawaqanitawse, Frost, Tuipolotu) Genuine Test players. Then L Lonergan, Nasser, Van Nek, Tizzano in this squad as well. Will Harris, Will Harrison, Reilly are mugs in this lot but stand outs in other years.
2020: 9 out of 35 - NC Spicy cough
Comps after this from 2023 feel unfair to count as the players are still in the development years.
Not going to compare to other countries as it serves no purpose with different playing environments but when we average about 8 getting at least one Test cap it's fairly safe to assume that only 2-4 of them will have a long Test career. If Aus can do that routinely you have 7-8 years of developing 3 stars each year that's a Wallaby match day squad. Then add the bolters like Jorgo, war horses like Slipper and the form/testing picks like Nasser, Lancaster and you have the Wallabies. I don't really see a time where we have 50+ legitimate guns in country unless RL was made illegal. Maybe the third tier comp will help but I think it will have more capacity to strengthen the depth within our Super Rugby sides and over a long period of time through competition for spots develop more Wallabies.