condition	mean	min	max
4 h after light	9.1389025	9.122445	9.15536
8 h after light	8.7190205	8.262172	9.175869
12 h after light	8.9795285	8.836612	9.122445
4 h after dark	9.003946	8.885447	9.122445
8 h after dark	9.4734515	8.653441	10.293462
12 h after dark	8.194815	8.194815	8.194815