condition	mean	min	max
4 h after light	8.910773333333333	8.60229	9.118210000000001
8 h after light	8.81838	8.72756	8.97293
12 h after light	8.94889	8.90478	8.98679
4 h after dark	9.156519999999999	8.92659	9.31299
8 h after dark	9.371063333333334	9.26515	9.46095
12 h after dark	9.729443333333332	9.67765	9.80187