condition	mean	min	max
4 h after light	9.097383333333333	8.974730000000001	9.24307
8 h after light	9.110996666666667	9.00196	9.25821
12 h after light	8.893553333333333	8.7212	8.989460000000001
4 h after dark	8.64373	8.582310000000001	8.7251
8 h after dark	8.467559999999999	8.346039999999999	8.5353
12 h after dark	8.600426666666666	8.34247	8.776769999999999