condition	mean	min	max
4 h after light	9.631946	9.182111	10.081781
8 h after light	9.047297499999999	8.955683	9.138912
12 h after light	8.943632000000001	8.012331	9.874933
4 h after dark	9.0719195	8.824126	9.319713
8 h after dark	8.405939499999999	7.987753	8.824126
12 h after dark	8.175356	8.175356	8.175356