condition mean min max 4 h after light 9.469380999999998 8.41054 10.528222 8 h after light 8.8069665 8.71088 8.903053 12 h after light 8.660827999999999 8.493151 8.828505 4 h after dark 10.632654500000001 10.508815 10.756494 8 h after dark 9.308542 9.057912 9.559172 12 h after dark 11.098589 11.098589 11.098589