condition mean min max 4 h after light 8.94628 4.98796 12.9046 8 h after light 6.984275 5.44726 8.52129 12 h after light 11.25315 10.5901 11.9162 4 h after dark 4.52266 0.0 11.2136 8 h after dark 11.356573333333333 5.81982 14.9461 12 h after dark 5.01039 0.0 11.6097