condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0258633 0.0 0.0517266 12 h after light 0.0 0.0 0.0 4 h after dark 0.0298093 0.0 0.0894279 8 h after dark 0.015769633333333335 0.0 0.0473089 12 h after dark 0.0 0.0 0.0