condition	mean	min	max
4 h after light	7.973879999999999	6.44333	9.50443
8 h after light	8.917504999999998	8.87351	8.9615
12 h after light	8.181925	7.45146	8.91239
4 h after dark	10.29692	9.62624	10.9676
8 h after dark	9.01888	8.8193	9.21846
12 h after dark	9.606185	9.27593	9.93644