condition	mean	min	max
4 h after light	12.21665	11.6115	12.8218
8 h after light	8.11566	6.92245	9.30887
12 h after light	7.696104999999999	6.36043	9.03178
4 h after dark	14.614466666666667	12.6411	16.8029
8 h after dark	12.275256666666666	8.07937	18.1714
12 h after dark	18.1636	14.4191	22.2423