condition mean min max 4 h after light 33.3 33.3 33.3 8 h after light 22.1 13.8 30.4 12 h after light 11.05 5.4 16.7 4 h after dark 20.45 8.1 32.8 8 h after dark 24.7 12.6 36.8 12 h after dark 28.1 16.5 39.7