condition mean min max 0 h after light 2.3385249999999997 2.17517 2.50188 4 h after light 0.421655 0.287303 0.556007 8 h after light 0.384927 0.318815 0.451039 4 h after dark 0.41625049999999997 0.39561 0.436891 8 h after dark 0.53841 0.396717 0.680103 12 h after dark 1.0008535 0.432857 1.56885