condition	mean	min	max
0 h after light	7.628585	6.51449	8.74268
4 h after light	2.31381	1.5976	3.03002
8 h after light	3.129555	2.76021	3.4989
4 h after dark	4.946165	4.0966	5.79573
8 h after dark	2.224815	2.08122	2.36841
12 h after dark	4.310185000000001	3.17872	5.44165