condition	mean	min	max
4 h after light	9.199784999999999	9.09461	9.30496
8 h after light	12.361799999999999	12.1296	12.594
12 h after light	9.000725	8.77879	9.22266
4 h after dark	14.4662	12.8505	16.0819
8 h after dark	10.551845	9.74339	11.3603
12 h after dark	10.5663	10.4568	10.6758