condition	mean	min	max
4 h after light	6.38991	5.50598	7.27384
8 h after light	7.75192	7.69121	7.81263
12 h after light	10.280645	9.26019	11.3011
4 h after dark	15.393066666666666	12.9099	18.1301
8 h after dark	14.2902	13.0137	15.1938
12 h after dark	9.093103333333334	5.97298	12.0249