condition mean min max 4 h after light 12.04355 10.4716 13.6155 8 h after light 6.7051 6.46814 6.94206 12 h after light 10.000225 7.17705 12.8234 4 h after dark 45.469899999999996 32.9595 57.9803 8 h after dark 25.6806 25.1925 26.1687 12 h after dark 19.310699999999997 16.6591 21.9623