condition mean min max 0 h after light 11.1622 10.8178 11.5066 4 h after light 10.7332 10.7324 10.734 8 h after light 10.101875 8.46945 11.7343 4 h after dark 15.0256 14.7782 15.273 8 h after dark 11.90305 11.3402 12.4659 12 h after dark 11.8397 11.3144 12.365