condition	mean	min	max
4 h after light	8.295080500000001	7.94102	8.649141
8 h after light	8.9398285	8.55724	9.322417
12 h after light	8.537980000000001	8.531881	8.544079
4 h after dark	9.008346	8.963678	9.053014
8 h after dark	9.940387000000001	8.576967	11.303807
12 h after dark	7.926331	7.926331	7.926331