condition	mean	min	max
4 h after light	15.2709	11.3903	19.1515
8 h after light	8.570115	7.21206	9.92817
12 h after light	14.31455	13.6733	14.9558
4 h after dark	40.1968	34.9121	47.509
8 h after dark	21.8573	18.4928	27.7037
12 h after dark	21.3395	18.1198	27.4534