This article states that the evasion rate on the inspections so far has been around 6%. But the reality is that it probably isn't so high as they will be targeting anywhere they have reason to believe is a hot-spot.
6% of revenue is more than 9 million euro. Which I believe is of the order of 3 times the amount of money saved by last autumn's capacity cutbacks.
From personal observation, it is demonstrably true that the Irish are more likely to fare-dodge than the Japanese. While racial stereotypes are a bit crude, honesty and honour would be regarded as core traits for Japanese people. I would think that is fair to say that this would not be the case for us Irish.