condition mean min max 0 h after light 58.0937 57.4441 58.7433 4 h after light 83.0432 79.2193 86.8671 8 h after light 88.49215000000001 85.4753 91.509 4 h after dark 84.69985 84.5328 84.8669 8 h after dark 65.56195 62.1105 69.0134 12 h after dark 53.75325 48.7509 58.7556