condition mean min max 4 h after light 11.1609 11.1175 11.2043 8 h after light 9.742515000000001 9.49157 9.99346 12 h after light 8.183375 7.03053 9.33622 4 h after dark 10.200825 9.01125 11.3904 8 h after dark 9.15271 8.4867 9.81872 12 h after dark 10.235 10.0277 10.4423