condition	mean	min	max
4 h after light	9.19506	9.18684	9.208839999999999
8 h after light	9.330156666666667	9.27833	9.37978
12 h after light	9.459186666666668	9.37003	9.60312
4 h after dark	9.343673333333333	9.25554	9.46125
8 h after dark	9.28886	9.268369999999999	9.32628
12 h after dark	9.198053333333332	8.94336	9.354519999999999