condition	mean	min	max
4 h after light	16.945497	14.672016	19.218978
8 h after light	12.9449355	12.807096	13.082775
12 h after light	11.2593395	10.963931	11.554748
4 h after dark	14.228683	13.082775	15.374591
8 h after dark	13.1827745	11.882359	14.48319
12 h after dark	15.170382	15.170382	15.170382