condition	mean	min	max
4 h after light	9.135253333333333	9.11272	9.15022
8 h after light	8.985183333333334	8.92336	9.04851
12 h after light	9.235819999999999	9.186739999999999	9.308639999999999
4 h after dark	9.31552	9.19972	9.39686
8 h after dark	9.349756666666668	9.13959	9.699710000000001
12 h after dark	9.241286666666667	9.16426	9.31673