Coming from Germany, I have the impression, that many are not religious, most are Christians, very few are actual atheists. Take me for example: I would not describe myself as atheist, but I would never say I am a Christian, either (I am not even baptized).
I am interested in the subject and fascinated by religions all over the world (especially Asian religions, like Shintō and Buddhism), but in my opinion, everyone should find their own way of thinking about the topic instead of taking the ideas of other people as their own.