condition	mean	min	max
4 h after light	6.605729999999999	5.25644	7.95502
8 h after light	9.2704	9.12587	9.41493
12 h after light	9.435255000000002	9.24004	9.63047
4 h after dark	9.49596	9.29582	9.6961
8 h after dark	8.60509	8.40756	8.80262
12 h after dark	9.318605	9.26693	9.37028