condition	mean	min	max
0 h after light	3.8992750000000003	3.70778	4.09077
4 h after light	3.842515	3.64916	4.03587
8 h after light	3.48703	3.40478	3.56928
4 h after dark	4.88791	4.7378	5.03802
8 h after dark	4.11933	3.7731	4.46556
12 h after dark	3.4001	3.29853	3.50167