Nope, I wish I could say more, but by doing that I'm probably going to give it away.
Keep thinking, you're almost there!
EDIT: wabatt got it!
It was nations who've been hit by a tropical cyclone who's name was subsequently retired.
The reason the Indian Ocean countries aren't on there is because they use a new list of names every year, so they don't need to retire the names of particularly bad storms. Unlike the other oceans who recycle the names list every 5 or 6 years.