condition mean min max 0 h after light 27.84315 27.5266 28.1597 4 h after light 20.46385 20.0784 20.8493 8 h after light 9.57678 9.22433 9.92923 4 h after dark 9.208275 7.56005 10.8565 8 h after dark 20.24115 19.2889 21.1934 12 h after dark 25.77855 22.5595 28.9976