condition	mean	min	max
4 h after light	8.041746666666667	7.82274	8.27554
8 h after light	7.901403333333334	7.660539999999999	8.09828
12 h after light	7.619470000000001	7.445130000000001	7.87235
4 h after dark	7.41166	7.135160000000001	7.57464
8 h after dark	7.229909999999999	6.8231399999999995	7.436319999999999
12 h after dark	7.289156666666667	7.11943	7.455080000000001