condition	mean	min	max
4 h after light	12.76145	11.3713	14.1516
8 h after light	13.47635	13.3652	13.5875
12 h after light	15.253	14.8071	15.6989
4 h after dark	22.18625	20.9122	23.4603
8 h after dark	20.6102	20.5962	20.6242
12 h after dark	21.608150000000002	21.4314	21.7849