condition	mean	min	max
4 h after light	20.4379	17.6435	23.2323
8 h after light	1.9514	1.5653	2.3375
12 h after light	2.40769	1.75682	3.05856
4 h after dark	6.48003	5.95023	7.00983
8 h after dark	33.89225	30.2231	37.5614
12 h after dark	15.000800000000002	12.1986	17.803