condition	mean	min	max
4 h after light	8.533904	8.153873	8.913935
8 h after light	8.6097765	8.573861	8.645692
12 h after light	8.740211500000001	8.651778	8.828645
4 h after dark	8.198705	7.823549	8.573861
8 h after dark	8.644548	8.004834	9.284262
12 h after dark	8.043255	8.043255	8.043255