condition mean min max 4 h after light 11.805043 11.805043 11.805043 8 h after light 12.139868 11.306232 12.973504 12 h after light 11.062026 10.802036 11.322016 4 h after dark 11.7650805 11.725118 11.805043 8 h after dark 13.943834 13.770409 14.117259 12 h after dark 11.805043 11.805043 11.805043