condition mean min max 4 h after light 13.282031 12.406134 14.157928 8 h after light 11.8224575 11.311203 12.333712 12 h after light 11.335932 11.211135 11.460729 4 h after dark 12.4939645 12.306588 12.681341 8 h after dark 12.544733 12.325571 12.763895 12 h after dark 14.22153 14.22153 14.22153