condition mean min max 0 h after light 11.370625 9.92275 12.8185 2 h after light 8.631094999999998 8.34992 8.91227 4 h after light 10.11316 9.33752 10.8888 8 h after light 9.612475 8.60795 10.617 12 h after light 14.23725 13.592 14.8825 2 h after dark 14.9463 14.3648 15.5278 4 h after dark 14.628900000000002 14.2528 15.005 8 h after dark 15.724149999999998 12.6489 18.7994 12 h after dark 16.199199999999998 16.0998 16.2986