condition	mean	min	max
4 h after light	15.36455	11.8905	18.8386
8 h after light	14.5071	14.0573	14.9569
12 h after light	20.61825	20.192	21.0445
4 h after dark	24.708199999999998	21.312	28.1044
8 h after dark	24.08125	21.9833	26.1792
12 h after dark	22.046	21.5584	22.5336