condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.527323 0.511685 0.542961 12 h after light 0.12835035 0.0789397 0.177761 4 h after dark 0.14582076666666666 0.056248 0.286922 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0533931 0.0 0.136796