condition mean min max 4 h after light 11.1874 10.008 12.3668 8 h after light 7.80375 7.52117 8.08633 12 h after light 4.0602149999999995 3.16205 4.95838 4 h after dark 5.41907 4.14287 6.69527 8 h after dark 4.19091 3.77284 4.60898 12 h after dark 7.17337 7.09976 7.24698