condition	mean	min	max
4 h after light	20.756500000000003	18.277	23.236
8 h after light	17.389850000000003	16.5011	18.2786
12 h after light	25.51015	21.9708	29.0495
4 h after dark	21.915100000000002	20.9218	22.9084
8 h after dark	23.025599999999997	22.4959	23.5553
12 h after dark	20.5259	19.5444	21.5074