condition mean min max 4 h after light 5.306826666666667 5.225709999999999 5.44029 8 h after light 5.325823333333333 5.19532 5.55012 12 h after light 5.136909999999999 5.00937 5.225709999999999 4 h after dark 5.31475 5.25137 5.3678300000000005 8 h after dark 5.3033600000000005 5.22435 5.37159 12 h after dark 5.218653333333333 5.1595 5.25566