condition mean min max 4 h after light 15.0 15.0 15.0 8 h after light 13.649999999999999 6.1 21.2 12 h after light 7.8 2.0 13.6 4 h after dark 15.3 2.6 28.0 8 h after dark 20.6 20.6 20.6 12 h after dark 12.8 10.5 15.1