condition	mean	min	max
4 h after light	7.6648	7.64401	7.68559
8 h after light	9.841294999999999	8.98339	10.6992
12 h after light	11.91255	11.4588	12.3663
4 h after dark	15.14	14.8394	15.4406
8 h after dark	12.134250000000002	11.7222	12.5463
12 h after dark	9.244605	9.10515	9.38406