condition	mean	min	max
4 h after light	7.9677945	7.587564	8.348025
8 h after light	6.6820985	6.002166	7.362031
12 h after light	8.554585	7.884377	9.224793
4 h after dark	7.148129	6.963293	7.332965
8 h after dark	6.869235	6.376439	7.362031
12 h after dark	8.32158	8.32158	8.32158