condition	mean	min	max
4 h after light	3.05986	2.18185	3.93787
8 h after light	4.439115	3.70875	5.16948
12 h after light	2.915305	2.82714	3.00347
4 h after dark	4.27265	3.85229	4.69978
8 h after dark	3.3003	2.24171	3.90422
12 h after dark	2.45552	2.26186	2.69744