hi doma,
reason i asked is because there was a missing category. a human being is not a blank slate at birth. some of who we are and how we behave and to some extent what we believe is pre-defined. so i was surprised to see that all 100% in your calculation was based on experience.
i was curious to read the study to understand the reason for the omission.
the person i have read on this is called Steven Pinker. i think i've talked about his book the Blank Slate with dig previously.
for myself, i think religion is a choice which should be made as an adult. but that is not how all parents think.