[PlaceFan]

> some regions has tradition of alcohol consumption deep in their culture and even national identity

New Zealand is one of those places.

> nearly everyone consumes alcohol to various degrees.

That's the point of the study. Wealthy people consume alcohol in moderate amounts, the working class are likely:

1) Consuming it in much greater amounts, or

2) Abstaining from alcohol entirely. Perhaps because of previous problems with alcohol abuse, strict religious adherence, etc. You can think of multiple reasons that might explain seeing such a class disparity.

[DrScump]

  New Zealand is one of those places.

Is that a NZ tradition or an imported British tradition? Did the Maori brew alcohol before European settlement?