condition mean min max 0 h after light 8.67722 7.66225 9.69219 2 h after light 5.70773 5.22505 6.19041 4 h after light 5.1878899999999994 5.07615 5.29963 8 h after light 4.709960000000001 4.0976 5.32232 12 h after light 6.172470000000001 5.98719 6.35775 2 h after dark 6.08597 5.79164 6.3803 4 h after dark 5.69112 5.12047 6.26177 8 h after dark 8.152835 7.23346 9.07221 12 h after dark 9.150615 8.33804 9.96319