condition	mean	min	max
4 h after light	4.11237	4.02759	4.25403
8 h after light	4.056753333333333	4.00394	4.09014
12 h after light	4.093023333333334	4.040080000000001	4.1476
4 h after dark	4.07109	4.0147699999999995	4.1757599999999995
8 h after dark	4.096286666666667	4.08748	4.10306
12 h after dark	4.096096666666667	4.05748	4.16493