condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.020950475 0.0 0.0838019 3 h after dark 0.03424066666666666 0.0 0.102722 6 h after dark 0.118327 0.0 0.354981 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0