condition	mean	min	max
4 h after light	14.6429095	9.368883	19.916936
8 h after light	12.584462	11.415801	13.753123
12 h after light	9.166408	8.963933	9.368883
4 h after dark	8.9603755	7.765861	10.15489
8 h after dark	8.143483	7.77933	8.507636
12 h after dark	8.130646	8.130646	8.130646