condition	mean	min	max
4 h after light	8.71256	8.60293	8.788
8 h after light	9.374789999999999	9.286769999999999	9.419939999999999
12 h after light	9.864183333333333	9.75382	9.93864
4 h after dark	9.632386666666667	9.536539999999999	9.74605
8 h after dark	9.2078	8.984919999999999	9.44725
12 h after dark	8.170636666666667	7.967789999999999	8.55668