Are Japanese religious?

Question:
Are Japanese religious?
Answer:
Many Japanese people say that they don't follow any religion.
But Japanese often do religious practice out of custom.
Pic: http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:%E6%B7%B1%E5%BF%97%E7%A5%9E%E7%A4%BE.jpg