condition mean min max 4 h after light 165.381914 158.295923 172.467905 8 h after light 164.287609 162.112392 166.462826 12 h after light 190.358978 150.527049 230.190907 4 h after dark 236.7222595 166.462826 306.981693 8 h after dark 192.3514455 145.130463 239.572428 12 h after dark 162.001288 162.001288 162.001288