I was looking at the fully vaccinated rates since that seems to be a lot more significant with Omicron and the U.S. has substantial lags but it does look like some of the variation comes from tracking the number of doses total without accounting for the difference between some people having 3 doses. It also looks like some of them are not accounting for the percentage of ineligible kids.

Here's the one I used, which shows full vaccination on 91.7% and partial at 93%:

https://www.irishtimes.com/news/health/covid-19-vaccine-trac...

Others have it around 80% so that's probably in error:

https://covid19ireland-geohive.hub.arcgis.com/pages/vaccinat... https://ourworldindata.org/covid-vaccinations?country=IRL https://graphics.reuters.com/world-coronavirus-tracker-and-m...