If that data doesn't exist then that's just because it isn't tracked. Here in Germany if you test positive on a PCR test you have to quarantine for 14 days, then you get a proof of recovery which for 6 months you can use like a proof of vaccination (which you need for non-essential shops, gyms, etc when the 7-day incidence is too high, like right now). As a result, tracking numbers for the "recovered" cohort isn't a problem. Obviously the "unvaccinated" group will always contains some unknown number of recovered people we don't know about, but at large enough effect sizes that isn't a problem.