condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.50014 0.0 1.00028 8 h after light 0.501865 0.0 1.00373 4 h after dark 0.996405 0.0 1.99281 8 h after dark 0.0 0.0 0.0 12 h after dark 0.4955535 0.0 0.991107