condition	mean	min	max
4 h after light	9.2995	9.15762	9.45433
8 h after light	9.839	9.75798	9.9437
12 h after light	9.68624	9.52938	9.84578
4 h after dark	9.103743333333334	8.724	9.36917
8 h after dark	8.6473	8.3557	9.20461
12 h after dark	8.579493333333334	8.415410000000001	8.7109