condition	mean	min	max
4 h after light	7.11688	5.46828	8.76548
8 h after light	12.25045	12.1644	12.3365
12 h after light	11.53515	11.3911	11.6792
4 h after dark	18.5869	17.1327	20.0411
8 h after dark	7.88872	7.09038	8.68706
12 h after dark	8.314665	7.36929	9.26004