condition mean min max 4 h after light 10.115645 10.065985 10.165305 8 h after light 12.701760499999999 12.065641 13.33788 12 h after light 11.6009645 11.445306 11.756623 4 h after dark 18.315405 11.756623 24.874187 8 h after dark 13.245395 12.255917 14.234873 12 h after dark 11.924876 11.924876 11.924876