condition	mean	min	max
4 h after light	7.9458035	7.646142	8.245465
8 h after light	7.439794	7.244366	7.635222
12 h after light	7.6441775	7.616146	7.672209
4 h after dark	7.621378	7.596614	7.646142
8 h after dark	7.957037999999999	7.672209	8.241867
12 h after dark	7.646142	7.646142	7.646142