condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.238672 0.0 0.939318 10 h after light 0.025153833333333334 0.0 0.150923 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0