condition	mean	min	max
4 h after light	14.121497000000002	13.904443	14.338551
8 h after light	13.830279	12.913282	14.747276
12 h after light	15.1221985	14.687136	15.557261
4 h after dark	13.197274	13.126056	13.268492
8 h after dark	15.007363999999999	13.599261	16.415467
12 h after dark	13.194754	13.194754	13.194754