condition mean min max 4 h after light 0.82978 0.0 1.65956 8 h after light 3.31914 2.56023 4.07805 12 h after light 0.1826575 0.119254 0.246061 4 h after dark 4.8043 3.07891 7.41719 8 h after dark 2.1254133333333334 1.24593 3.37282 12 h after dark 0.30840433333333334 0.0 0.925213