condition	mean	min	max
4 h after light	5.191013333333333	5.15166	5.22344
8 h after light	5.1782699999999995	5.06769	5.38477
12 h after light	5.13397	4.9948	5.22949
4 h after dark	5.170816666666667	5.08424	5.268680000000001
8 h after dark	5.165883333333333	5.08515	5.32174
12 h after dark	5.086226666666667	5.0268	5.184019999999999