Hey group!

Im looking for a list of all TLDs that have a restricted second level zone,
like .co.uk.
I couldnt find anything on Google, only stumbled upon some TLDs where this
is the case, namely

..uk
..jp
..au
..nz
..za

But surely there are some more. I realize this is a little off-topic, but i
couldnt find a better place to ask.
I need this for a SPAM URI-Blocklist lookup script (SURBL), which has to
decide whether or not to include the third level domain in the lookup query.

Thanks.
Dominik