condition	mean	min	max
4 h after light	9.301085	7.45777	11.1444
8 h after light	9.36666	8.60922	10.1241
12 h after light	11.134525	8.16415	14.1049
4 h after dark	19.51715	17.964	21.0703
8 h after dark	15.04195	14.9195	15.1644
12 h after dark	12.693	12.1646	13.2214