condition mean min max 4 h after light 5.299313333333333 5.18799 5.45162 8 h after light 5.399916666666667 5.08244 5.8125800000000005 12 h after light 5.26151 5.15374 5.38161 4 h after dark 5.425503333333333 5.30324 5.59748 8 h after dark 5.411486666666667 5.182869999999999 5.6798 12 h after dark 5.3600699999999994 5.1330599999999995 5.62373