Sean,
of the scans I get and have seen..
60% APNIC region
Most noteably- Taiwan, China, and Korea (north)
20% RIPE
Most noteable- Former Soviet Block nations then
Scandanavian countries...
20% ARIN/LACNIC
This is a rough estimate from the last 3 weeks...
I guess you may be after this kind of fact:
When I blocked HINET
(Taiwan based-- has a single /16 to my knowledge)
I cut scans/probes by 20%....
Later,
Jim