condition	mean	min	max
4 h after light	5.390533333333333	5.08067	5.62517
8 h after light	5.86204	5.55816	6.11665
12 h after light	5.758443333333333	5.46598	5.93235
4 h after dark	5.8834333333333335	5.61185	6.10475
8 h after dark	5.76544	5.4086099999999995	6.10628
12 h after dark	5.82921	5.5751599999999994	5.9625699999999995