condition mean min max 4 h after light 11.596795 11.591726 11.601864 8 h after light 13.260406 12.196918 14.323894 12 h after light 11.805043 11.805043 11.805043 4 h after dark 12.7285895 12.260767 13.196412 8 h after dark 11.652471 10.924775 12.380167 12 h after dark 10.313561 10.313561 10.313561