condition	mean	min	max
4 h after light	8.055679	7.343084	8.768274
8 h after light	8.993279000000001	8.044739	9.941819
12 h after light	9.322927	9.10294	9.542914
4 h after dark	8.206952000000001	8.132472	8.281432
8 h after dark	8.571511000000001	8.060668	9.082354
12 h after dark	8.060933	8.060933	8.060933