condition mean min max 4 h after light 8.386075 8.37311 8.39904 8 h after light 11.139050000000001 10.8233 11.4548 12 h after light 13.08865 12.9118 13.2655 4 h after dark 13.53895 11.8426 15.2353 8 h after dark 11.12885 10.2998 11.9579 12 h after dark 11.1715 10.3557 11.9873