condition	mean	min	max
4 h after light	8.3765325	8.081413	8.671652
8 h after light	8.971372	8.573861	9.368883
12 h after light	8.3748035	8.175746	8.573861
4 h after dark	8.190788	8.024441	8.357135
8 h after dark	8.6298265	8.444228	8.815425
12 h after dark	8.573861	8.573861	8.573861