condition mean min max 4 h after light 5.0 5.0 5.0 8 h after light 8.25 7.5 9.0 12 h after light 24.5 20.8 28.2 4 h after dark 25.450000000000003 15.3 35.6 8 h after dark 26.6 25.7 27.5 12 h after dark 13.0 2.4 23.6