condition mean min max 4 h after light 0.2182885 0.0 0.436577 8 h after light 0.356476 0.0 0.712952 12 h after light 0.87074 0.0 1.74148 4 h after dark 1.147105 0.77207 1.52214 8 h after dark 0.284365 0.190696 0.378034 12 h after dark 0.5335460000000001 0.316133 0.750959