condition	mean	min	max
3 h after light	17.856433333333335	16.8534	19.0285
6 h after light	12.596543333333333	8.89093	15.1212
9 h after light	14.8396	12.9003	17.2572
12 h after light	16.236475	15.2414	17.331
3 h after dark	16.7813	13.0691	19.8682
6 h after dark	13.440566666666667	12.6493	14.9595
9 h after dark	12.4986	11.9519	13.0556
12 h after dark	12.6273	12.4386	12.816