condition	mean	min	max
4 h after light	8.645106666666665	8.562339999999999	8.76019
8 h after light	9.161843333333334	9.0036	9.30907
12 h after light	8.869760000000001	8.75726	9.029060000000001
4 h after dark	9.060366666666667	8.797139999999999	9.36369
8 h after dark	9.10038	8.91266	9.34989
12 h after dark	9.16781	9.06465	9.35281