condition mean min max 0 h after light 15.1958 12.2102 18.1814 2 h after light 11.078015 9.35253 12.8035 4 h after light 10.16135 10.0875 10.2352 8 h after light 7.82471 6.45714 9.19228 12 h after light 10.6206 10.4296 10.8116 2 h after dark 10.791765000000002 9.83533 11.7482 4 h after dark 13.80045 13.6002 14.0007 8 h after dark 18.4032 18.1953 18.6111 12 h after dark 16.3714 13.7646 18.9782