condition	mean	min	max
4 h after light	14.224599999999999	13.0572	15.392
8 h after light	15.40895	14.7613	16.0566
12 h after light	16.81275	15.9713	17.6542
4 h after dark	14.55395	14.4899	14.618
8 h after dark	14.75685	14.0981	15.4156
12 h after dark	15.205549999999999	15.1085	15.3026