Very interesting. I had a look at Ireland. Here's the historical graph
Our lowest was 2015 where it was 0.4 cases per million or just two cases for the whole year. Generally it's hovering around 10x to 15x that with most of the cases among adult men.
I've never actually heard of anyone with measles here. The health agency does follow up rigourously if your kid misses the vaccine in school because they were out that day or whatever.