condition mean min max 4 h after light 13.015 12.7506 13.2794 8 h after light 14.267800000000001 13.7546 14.781 12 h after light 12.8628 11.774 13.9516 4 h after dark 16.241 14.773 17.4076 8 h after dark 15.540233333333333 13.145 17.5025 12 h after dark 12.1741 11.5986 13.2793