condition	mean	min	max
4 h after light	10.16386	9.98202	10.3457
8 h after light	7.247535	6.94654	7.54853
12 h after light	8.1339	7.72737	8.54043
4 h after dark	13.5587	12.2868	14.8306
8 h after dark	14.3814	13.8492	14.9136
12 h after dark	14.18295	13.9507	14.4152