condition	mean	min	max
4 h after light	16.66255	15.0876	18.2375
8 h after light	13.5412	13.0422	14.0402
12 h after light	14.323599999999999	13.4697	15.1775
4 h after dark	18.312066666666666	17.6702	19.2486
8 h after dark	23.008	22.6903	23.3203
12 h after dark	19.6366	18.1824	21.6378