condition	mean	min	max
4 h after light	8.68309	7.57307	9.79311
8 h after light	8.447759999999999	7.99025	8.90527
12 h after light	9.53485	8.8106	10.2591
4 h after dark	11.846900000000002	11.5516	12.1422
8 h after dark	10.26381	9.79682	10.7308
12 h after dark	10.10711	9.67922	10.535