condition mean min max 0 h after light 54.41435 53.8943 54.9344 4 h after light 50.44195 48.0672 52.8167 8 h after light 90.86935 89.8739 91.8648 4 h after dark 124.858 108.872 140.844 8 h after dark 88.87645 86.0311 91.7218 12 h after dark 68.4871 65.2677 71.7065