condition mean min max 4 h after light 0.02651425 0.0 0.0530285 8 h after light 0.03102145 0.0 0.0620429 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0