Asia - higher (if not the highest) rate of piracy.
Europe - depends on which European country, some are are very accepting of piracy whereas others abhor it. Maybe 20%
America - There's the DMCA, but seeing as people can access/order from the internet and Americans are naturally retarded (no offense but hey, you deserve it for creating the DMCA, RIAA, etc...), maybe 5-10%
Australia & New Zealand - I actually have no clue, but it should be quite similar to USA. 10-20%
All are estimates based off stereotypes that I've encountered.