Well .asia doesn't seem to have done as well as its backers expected. It was at 195,295 on 01/January/2011. That's small ccTLD territory but it was up against a group of well established ccTLDs in the region (.cn, .jp, .au, .nz etc).
Developed websites are something of a rarity in .eu but the .eu has become a gateway TLD rather than a ccTLD. There's still a lot of cyberwarehoused domains in .eu but much of that has washed out of the zone in the last five years.
The five year mark seems to be when it is possible to tell how a new TLD will perform as a lot of the highly speculative registrations will have dropped and, if everything goes well, large scale development should be taking place.