condition mean min max 0 h after light 0.064829 0.0 0.129658 4 h after light 0.193892 0.132112 0.255672 8 h after light 0.194269 0.131984 0.256554 4 h after dark 0.1917665 0.0 0.383533 8 h after dark 0.321934 0.0 0.643868 12 h after dark 0.1914055 0.129484 0.253327