condition	mean	min	max
4 h after light	9.202698	8.921745	9.483651
8 h after light	8.748439999999999	8.748069	8.748811
12 h after light	9.049467	8.778269	9.320665
4 h after dark	8.5540135	8.159764	8.948263
8 h after dark	9.437726	9.102818	9.772634
12 h after dark	9.361148	9.361148	9.361148