condition	mean	min	max
4 h after light	8.879256666666667	8.59109	9.17988
8 h after light	9.12647	8.88044	9.507439999999999
12 h after light	9.0335	8.74733	9.372069999999999
4 h after dark	8.802636666666666	8.55208	9.19075
8 h after dark	8.875183333333334	8.58014	9.43407
12 h after dark	8.866900000000001	8.49704	9.168510000000001