condition	mean	min	max
4 h after light	14.02097	7.63011	18.4417
8 h after light	6.80043	1.80815	10.6814
12 h after light	5.04566	2.79909	7.32628
4 h after dark	5.429436666666667	4.87014	5.98457
8 h after dark	7.04095	5.5246	9.69591
12 h after dark	14.9691	11.4718	20.5748