condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.04411975 0.0 0.0882395 4 h after dark 0.0 0.0 0.0 8 h after dark 0.08619133333333334 0.0 0.258574 12 h after dark 0.0 0.0 0.0