condition	mean	min	max
4 h after light	15630.3	15630.3	15630.3
8 h after light	14164.65	12975.4	15353.9
12 h after light	9964.5	8656.3	11272.7
4 h after dark	8478.55	7868.2	9088.9
8 h after dark	9483.65	7846.4	11120.9
12 h after dark	13202.9	10509.4	15896.4