condition	mean	min	max
4 h after light	8.994493333333333	8.62999	9.20089
8 h after light	7.07177	6.720110000000001	7.415719999999999
12 h after light	7.22598	7.12091	7.40106
4 h after dark	6.665156666666666	6.59408	6.79294
8 h after dark	7.840443333333334	7.52517	8.15281
12 h after dark	9.393983333333335	9.283710000000001	9.45606