condition mean min max 4 h after light 11.073507 10.800803 11.346211 8 h after light 10.719294999999999 10.644364 10.794226 12 h after light 12.4238885 11.584909 13.262868 4 h after dark 12.792936000000001 12.73898 12.846892 8 h after dark 12.6370105 10.289815 14.984206 12 h after dark 12.379393 12.379393 12.379393