condition	mean	min	max
4 h after light	5.079625	4.40839	5.75086
8 h after light	5.38228	5.23367	5.53089
12 h after light	12.63505	12.549	12.7211
4 h after dark	12.172933333333333	11.0133	13.5417
8 h after dark	9.83025	9.72867	9.94567
12 h after dark	8.70859	7.83296	10.3302