Yeah, but these are taken as sample. I’ve never once been asked, but I’m certain my existence in a particular geographic area has been counted one way or the other. Was the sample statistically significant? Who knows.

Counted as affiliation of by culture ,studies are as said not a census. I was born into something . My belief may be something else. Then also not all religions are equal in my book . The desert variations are at one end. Others Sikhs , Buddhism, variations of different polytheists and are more on the other end…

One end is more prone to blow shit up just for who beliefs in what skydaddy.

Am I religious? No . Am I spiritual? sure but I would never trust a hippie. And my worldview is more based around material reality than idealistic wishing. Where do I end up in the stats?