condition	mean	min	max
4 h after light	9.4735785	9.364596	9.582561
8 h after light	8.596535	8.521823	8.671247
12 h after light	8.556443999999999	8.257082	8.855806
4 h after dark	8.074833	7.326483	8.823183
8 h after dark	8.956751	8.855806	9.057696
12 h after dark	25.053078	25.053078	25.053078