condition	mean	min	max
4 h after light	7.8875025	7.646142	8.128863
8 h after light	8.652732499999999	8.200377	9.105088
12 h after light	8.473471	8.228335	8.718607
4 h after dark	7.5736795	7.483217	7.664142
8 h after dark	8.2765585	8.139847	8.41327
12 h after dark	8.200377	8.200377	8.200377