Originally Posted By: zmjezhd
a predominantly Protestant country

According to the CIA World Factbook (2006, link), the religious breakdown for the Netherlands is:

Roman Catholic 30%
Dutch Reformed 11%
Calvinist 6%
other Protestant 3%
Muslim 5.8%
other 2.2%
none 42%

So, it looks like the atheists have the majority, followed by Roman Catholics, and then Protestants.

Putting "no religion" on a census form isn't a declaration of Atheism. It represents a diverse bunch of people, including:
- true Atheists
- Agnostics
- members of sects and cults, and even some mainstream Christians who don't like the word 'religion' to describe their views
- people who believe in God (or something) but don't go to church, synagogue, mosque, etc or consider themselves 'religious'
- people who left the question blank

The number of true atheists in the world is probably less than ten percent of the population, even in the most secular countries of Europe.