condition mean min max 4 h after light 13.9 13.9 13.9 8 h after light 9.149999999999999 1.4 16.9 12 h after light 5.5 2.4 8.6 4 h after dark 1.6 1.5 1.7 8 h after dark 6.15 3.2 9.1 12 h after dark 11.7 9.8 13.6