condition	mean	min	max
4 h after light	15.629929	14.883512	16.376346
8 h after light	16.978	16.282935	17.673065
12 h after light	19.463482999999997	17.201295	21.725671
4 h after dark	19.761961	17.777732	21.74619
8 h after dark	17.630815	15.961701	19.299929
12 h after dark	13.121894	13.121894	13.121894