condition	mean	min	max
4 h after light	5.831906666666667	5.6736	6.02695
8 h after light	6.00068	5.72532	6.2102900000000005
12 h after light	6.798430000000001	6.72611	6.85497
4 h after dark	6.380676666666667	6.27076	6.53567
8 h after dark	6.263843333333333	6.18582	6.40701
12 h after dark	6.36816	6.318569999999999	6.41818