condition	mean	min	max
4 h after light	11.131293	9.72805	12.534536
8 h after light	9.191051999999999	8.304122	10.077982
12 h after light	8.681734500000001	8.412501	8.950968
4 h after dark	7.6067245	7.146924	8.066525
8 h after dark	7.8111715	7.801888	7.820455
12 h after dark	32.148037	32.148037	32.148037