condition	mean	min	max
4 h after light	9.6716355	9.315987	10.027284
8 h after light	9.1086645	8.322675	9.894654
12 h after light	8.0705375	7.8184	8.322675
4 h after dark	8.0409995	7.979811	8.102188
8 h after dark	8.3843755	8.353447	8.415304
12 h after dark	7.508653	7.508653	7.508653