condition	mean	min	max
4 h after light	8.30198	8.24729	8.345839999999999
8 h after light	8.078973333333334	7.9371	8.27876
12 h after light	7.963826666666666	7.83167	8.170539999999999
4 h after dark	8.077876666666667	8.0175	8.145769999999999
8 h after dark	8.239986666666667	8.11962	8.32158
12 h after dark	7.909389999999999	7.827999999999999	7.982239999999999