condition	mean	min	max
4 h after light	5.327265000000001	4.48976	6.16477
8 h after light	5.6891	5.41879	5.95941
12 h after light	6.067715	5.89704	6.23839
4 h after dark	8.0736	7.85919	8.2505
8 h after dark	8.73053	8.02079	9.31126
12 h after dark	6.993746666666667	6.72821	7.16221