condition mean min max 0 h after light 9.449045 6.41779 12.4803 4 h after light 21.391 20.4716 22.3104 8 h after light 21.5537 18.8302 24.2772 4 h after dark 21.920099999999998 21.1339 22.7063 8 h after dark 14.93655 14.5005 15.3726 12 h after dark 10.9945 10.5563 11.4327