condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.2772345 0.0 0.771671 10 h after light 0.03967866666666667 0.0 0.238072 14 h after light 0.11083133333333334 0.0 0.664988 18 h after light 0.06873383333333334 0.0 0.412403 2 h after dark 0.071013 0.0 0.426078