condition	mean	min	max
4 h after light	12.2409	11.2004	13.2814
8 h after light	14.58745	14.5334	14.6415
12 h after light	18.958750000000002	18.1247	19.7928
4 h after dark	22.62125	21.737	23.5055
8 h after dark	18.32605	17.0966	19.5555
12 h after dark	15.34435	15.2504	15.4383