condition	mean	min	max
4 h after light	7.415725	7.1372	7.69425
8 h after light	7.1235	6.95355	7.29345
12 h after light	9.081865	9.04044	9.12329
4 h after dark	14.07395	13.406	14.7419
8 h after dark	12.85585	12.6023	13.1094
12 h after dark	11.401399999999999	11.3073	11.4955