condition	mean	min	max
4 h after light	6.20044	5.04438	7.3565
8 h after light	6.1376349999999995	5.92738	6.34789
12 h after light	6.4834	6.43711	6.52969
4 h after dark	8.894110000000001	8.04621	9.74201
8 h after dark	6.67952	6.61013	6.74891
12 h after dark	7.445435	6.77544	8.11543