condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.5854705 0.240414 0.930527 8 h after light 0.353525 0.240181 0.466869 4 h after dark 0.1163235 0.0 0.232647 8 h after dark 0.465738 0.234338 0.697138 12 h after dark 0.235631 0.0 0.471262