condition mean min max 0 h after light 8.05711 7.69909 8.41513 2 h after light 3.39303 3.08708 3.69898 4 h after light 3.3975150000000003 3.00335 3.79168 8 h after light 9.494465 9.28982 9.69911 12 h after light 15.020999999999999 11.1649 18.8771 2 h after dark 14.475850000000001 13.0586 15.8931 4 h after dark 13.433250000000001 12.7609 14.1056 8 h after dark 11.260549999999999 11.0779 11.4432 12 h after dark 7.648325 6.66694 8.62971