condition	mean	min	max
4 h after light	4.17194	3.71143	4.63245
8 h after light	3.95578	3.7861	4.12546
12 h after light	5.41524	5.33116	5.49932
4 h after dark	5.109893333333333	4.4345	5.87311
8 h after dark	6.758493333333333	5.42053	7.88073
12 h after dark	5.133976666666666	4.59216	5.42592