condition	mean	min	max
4 h after light	4.396035	4.30876	4.48331
8 h after light	2.012455	1.91813	2.10678
12 h after light	2.05588	1.82521	2.28655
4 h after dark	2.677205	2.57368	2.78073
8 h after dark	3.332875	3.31998	3.34577
12 h after dark	3.985585	3.94839	4.02278