condition	mean	min	max
4 h after light	1.45857	1.4529	1.46424
8 h after light	3.37893	3.26131	3.49655
12 h after light	5.96964	5.56676	6.37252
4 h after dark	5.122985	3.38079	6.86518
8 h after dark	3.47455	3.37353	3.57557
12 h after dark	2.56291	2.30184	2.82398