condition	mean	min	max
0 h after light	5.84424	5.36003	6.32845
4 h after light	5.602695	5.07137	6.13402
8 h after light	5.848925	5.16389	6.53396
4 h after dark	8.29019	7.52033	9.06005
8 h after dark	5.86919	5.84456	5.89382
12 h after dark	5.568795	4.77931	6.35828