condition	mean	min	max
0 h after light	10.406365000000001	8.79633	12.0164
4 h after light	9.395904999999999	8.14801	10.6438
8 h after light	7.38098	4.47706	10.2849
4 h after dark	15.35125	12.1733	18.5292
8 h after dark	16.416800000000002	14.9639	17.8697
12 h after dark	11.22336	8.38522	14.0615