condition	mean	min	max
4 h after light	2.301275	1.86302	2.73953
8 h after light	4.55031	4.30817	4.79245
12 h after light	6.31625	6.29541	6.33709
4 h after dark	6.770713333333333	6.66912	6.85709
8 h after dark	4.69855	4.39367	5.2818
12 h after dark	3.0306233333333332	2.71156	3.35216