condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.03284445 0.0 0.0656889 8 h after light 0.0 0.0 0.0 4 h after dark 0.03178335 0.0 0.0635667 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0