condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.079874 0.0 0.239622 9 h after light 0.03321876666666667 0.0 0.0996563 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0