condition	mean	min	max
4 h after light	8.36589	8.13509	8.615739999999999
8 h after light	8.56264	8.47688	8.63011
12 h after light	9.312423333333333	9.12101	9.42009
4 h after dark	9.282203333333333	8.99927	9.524389999999999
8 h after dark	8.9919	8.8347	9.20037
12 h after dark	8.672746666666667	8.53076	8.93872