condition mean min max 0 h after light 13.01765 12.9629 13.0724 4 h after light 5.86115 5.5665 6.1558 8 h after light 5.789294999999999 4.82581 6.75278 4 h after dark 11.7129 11.3058 12.12 8 h after dark 13.4118 13.259 13.5646 12 h after dark 12.23285 11.8858 12.5799