condition mean min max 4 h after light 0.1829735 0.182262 0.183685 8 h after light 0.1488215 0.0 0.297643 12 h after light 0.0 0.0 0.0 4 h after dark 0.080581 0.0 0.161162 8 h after dark 0.317045 0.315643 0.318447 12 h after dark 0.5114795000000001 0.395938 0.627021