condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.021734966666666664 0.0 0.0652049 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0