Italians are quite honest, after all

The Economist publishes a summary graph detailing how often european people use undeclared labour to purchase goods or services.
Quite surprisingly, Denmark, The Netherlands and Sweden come to the first places... Rather than, say, Italy. Is iot that we really buy less 'grey' goods and services? Or just that Italian don't even perceive buying sunglasses from the senegalese street-kiosk and paying the car's mechanic cash without fiscal receipt as 'the same kind of thing'? Me thinks the second one is more correct...