condition mean min max 4 h after light 3.913451 3.704882 4.072222 8 h after light 2.726792 1.7628720000000002 3.256416 12 h after light 2.1355103333333334 1.684463 2.755368 16 h after light 3.777009 3.135688 4.525879 4 h after dark 3.3495003333333333 3.06888 3.6224190000000003 8 h after dark 2.0218493333333334 1.687987 2.253739