condition	mean	min	max
4 h after light	7.95611	6.80331	9.10891
8 h after light	6.0459700000000005	5.7652	6.32674
12 h after light	8.13641	7.21474	9.05808
4 h after dark	9.51236	8.56564	11.0305
8 h after dark	11.506266666666667	10.7499	12.8259
12 h after dark	8.624496666666667	7.58044	9.23038