condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0758735 0.0 0.151747 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.073338 0.0 0.146676 12 h after dark 0.0 0.0 0.0