condition	mean	min	max
4 h after light	8.432523333333334	8.21177	8.67985
8 h after light	8.4331	8.24682	8.53405
12 h after light	8.67721	8.3404	8.85569
4 h after dark	8.807426666666666	8.64371	8.93362
8 h after dark	8.996606666666667	8.874	9.06707
12 h after dark	9.10598	8.750539999999999	9.325660000000001