condition	mean	min	max
4 h after light	3.380045	2.60435	4.15574
8 h after light	2.992	1.9493	4.0347
12 h after light	0.2517555	0.216429	0.287082
4 h after dark	2.955365	2.64837	3.26236
8 h after dark	2.4563949999999997	1.87926	3.03353
12 h after dark	2.391925	2.35732	2.42653