condition	mean	min	max
4 h after light	8.464905	6.70901	10.2208
8 h after light	7.22527	6.30611	8.14443
12 h after light	7.765694999999999	7.17786	8.35353
4 h after dark	8.722946666666667	8.32264	9.37015
8 h after dark	10.19703	9.39007	11.2335
12 h after dark	8.985803333333333	8.54987	9.71594